Waterfowl

Here's a list of all the UK Waterfowl:

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Wigeon

Wigeons are medium-sized ducks, recognised by their round heads and relatively small bills. The males boast a striking appearance with their chestnut heads and necks, complemented by a yellow forehead, pink breast, and a grey body. What sets them apart in flight is their white underbellies and, for the males, a prominent white wing patch.

These ducks are a common sight, particularly in the UK, due to their significant wintering numbers.

Differences Between Male And Female Wigeons

Male Wigeons are easily distinguishable with their colourful plumage – a mix of chestnut, yellow, pink, and grey. The females, on the other hand, tend to have a more understated mottled brown or grey appearance, resembling female mallards but with a pointed tail.

Both sexes share a common feature – a small grey bill tipped with black.

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Whooper Swan

Whooper Swans are majestic birds, easily recognised by their large size and pure white feathers. They stand out with a long, straight neck and striking black legs. Their black bill is adorned with a distinctive large, triangular yellow patch, making them unmistakable.

These swans are larger than the Bewick’s Swan and hold a regal posture with their necks usually held erect.

Differences Between Male and Female Whooper Swans

Male and female Whooper Swans share a similar elegant appearance, but males are generally larger. On average, males weigh between 9.8 to 11.4 kilograms and have a slightly longer wingspan, whereas females typically weigh around 8.2 to 9.2 kilograms.

Despite these size differences, both sexes exhibit the same stunning white plumage and yellow-and-black beak, making them a spectacular sight.

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Velvet Scoter

Velvet Scoters are remarkable for their bold, contrasting colours and robust build. Males are predominantly black with a distinctive white eye patch and a conspicuous white wing patch.

Their large, bulbous bill is a vivid yellow, adding a splash of colour to their otherwise dark plumage. Females, on the other hand, sport a more subdued brown colouration with paler head patches and white wing markings.

Both sexes showcase a hefty body and long wings, measuring around 51 to 58 cm in length with a wingspan stretching between 86 to 99 cm.

Differences Between Male and Female Velvet Scoters

Distinguishing male and female Velvet Scoters is quite straightforward.

Males boast a glossy black plumage with a yellow-edged bill and a unique white mark near the eye.

Females, however, are cloaked in dark brown with less pronounced white head patches and a darker bill. During flight, both genders reveal the characteristic white wing patches, a key identification feature of this species.

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Tufted Duck

The Tufted Duck is a charming, medium-sized diving bird, slightly smaller than the familiar Mallard. Recognisable by their bold black and white colouring, the males boast a sleek black head, neck, breast, and back, contrasted by striking white sides.

Notably, both sexes flaunt a unique feather tuft at the back of their heads, with males displaying a more pronounced version. They have golden-yellow eyes and a small crest, with a notable white stripe across the wing in flight. Measuring 40-47 cm in length with a wingspan of 67-73 cm, they are a frequent sight across the UK’s water bodies.

Differences Between Male And Female Tufted Ducks

Males are distinguished by their stark black and white plumage and a blue-grey bill. In contrast, females wear a more subdued brown attire with paler flanks, occasionally showing white around the bill base. While the male is mostly silent, the female’s vocalisation is a distinctive, harsh “karr”, primarily heard in flight.

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Teal

Teals, the smallest of dabbling ducks, exhibit distinct colours and patterns.

Male teals boast a chestnut head with a striking green patch near the eye, a speckled chest, and grey sides, highlighted by a yellow-tailed border. In contrast, female teals display a mottled brown plumage.

Both sexes share a notable feature: vivid green wing patches visible during flight. These ducks are commonly found in UK’s marshlands and exhibit a blend of colours that make them easily distinguishable from other duck species.

Differences Between Male And Female Teals

Male and female teals can be differentiated by their distinct colouration. The males, or drakes, are characterised by their grey bodies, speckled breasts, and the notable chestnut head with a green eye patch.

Females, or hens, are predominantly mottled brown, which offers camouflage in their natural habitat. However, both genders share the bright green wing patch, a key identifying feature, especially visible during flight.

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Scaup

Scaups are striking diving ducks, often confused with Tufted Ducks.

The males boast a splendid black head, shoulders, and breast, contrasted with white flanks and a grey back. Their black tails add to their distinct appearance. Females, meanwhile, wear a brown plumage adorned with prominent white patches near their bill.

When these birds take flight, they reveal white stripes along their wing’s back edge.

Differences Between Male And Female Scaups

Male and female Scaups differ notably. Males display a glossy greenish-black head, lacking the crest seen in Tufted Ducks, and have a rounder shape.

Their white flanks and grey backs set them apart. Females are brown but can be easily identified by the bold white patch around the bill base, more striking than in any female Tufted Duck. Juvenile Scaups, usually dark brown, might exhibit a subtle white bill patch.

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Smew

Smews are distinctive ducks, making them a fascinating subject for observation.

Male smews are particularly striking with their bold black-and-white plumage, which has earned them the nickname ‘panda ducks’. They exhibit a ‘cracked ice’ appearance, predominantly white with a stark black back, and a distinctive black mask. Their flight reveals contrasting black and white wings.

Female smews, also known as ‘redheads’, have a more subdued grey body with a chestnut head and a white cheek patch. In flight, they display notable oval white wing-patches.

Young males and females can be easily mixed up with other species, but the smew’s hooked, serrated bill sets it apart, aiding in its fish-catching endeavours. Measuring about 38-44 cm in length with a wingspan of 55-69 cm, they are relatively small yet robust.

Differences Between Male And Female Smews

Distinguishing between male and female smews is quite straightforward. Males are predominantly white with black markings, presenting a stark contrast, while females sport a grey plumage with a reddish-brown head.

Both genders share the characteristic white cheek patch, but it’s the male’s striking black-and-white combination that truly sets them apart.

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Slavonian Grebe

Slavonian Grebes are remarkable for their golden ear tufts, a feature that has earned them the nickname ‘horned grebe’ in America. These birds, comparable in size to a moorhen, boast a length of about 31-36 cm and a wingspan of 62cm.

Weighing around 410g, they have a distinctive appearance, especially in their breeding plumage, which includes golden ‘horns’, black cheeks, and a vibrant red neck and flanks. In contrast, their winter attire is a more subdued black and white, blending seamlessly with other grebe species.

Differences Between Male And Female Slavonian Grebes

Male and female Slavonian Grebes share similar plumage, with males being slightly larger and more vividly coloured. However, these differences are subtle, making it a bit of a challenge to distinguish between the two.

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Shoveler

Shovelers are easily recognised by their large, spoon-shaped bills, perfect for surface feeding. The males boast a striking appearance with dark green heads, contrasting white breasts, and chestnut sides. Females, on the other hand, display a mottled brown plumage.

Both genders exhibit distinctive light blue and green patches on their wings when in flight. These ducks typically measure 44-52cm in length with a wingspan of 70-84cm.

Differences Between Male And Female Shovelers

During the breeding season, male Shovelers are particularly colourful with their dark green heads and bright white breasts, accompanied by orange-brown sides. Females, in contrast, are more subtly coloured with mottled brown feathers.

Interestingly, male Shovelers undergo a transformation outside the breeding season, adopting a more camouflaged, mottled brown ‘eclipse’ plumage similar to the females.

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Shelduck

Shelducks stand out with their vibrant and unique appearance. They’re larger than your typical mallard but smaller than a goose. These birds boast a dark green head and neck, complemented by a chestnut belly stripe. Their red bill adds a dash of bright colour, making them easily identifiable.

Differences Between Male And Female Shelducks

While male and female Shelducks share similar colouration, there are subtle differences. The male Shelduck, especially during the breeding season, displays more vivid colours. His bill turns a brighter red and features a noticeable knob on the forehead.

Females, on the other hand, are generally smaller and have distinct white facial markings.

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Ruddy Duck

Ruddy Ducks are distinctive small ducks with stout bills shaped like a scoop, and long, tough tails, often held positioned upward. Their heads peak slightly and they have short but thick necks.

Differences Between Male and Female Ruddy Ducks

Male Ruddy Ducks are known for their striking summer plumage, featuring a rich chestnut body, black cap, and a bright blue bill. In contrast, females and juvenile males are less vibrant, with overall brownish tones, a dark cap, and a less distinct cheek stripe.

During the winter, both sexes adopt a duller appearance, though the males retain their characteristic cap and cheek patterns.

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Red-Necked Grebe

Red-Necked Grebes are adept swimmers and divers, notable for their winter plumage, which is like the Great Crested Grebe. However, they have thicker necks and stout dark bills tinted with yellow.

Their body is brown, with a black-coloured crown, whitish cheeks, and, in summer, a stunning red neck and breast.

Differences Between Male And Female Red-Necked Grebes

Both male and female Red-Necked Grebes share similar plumage; however, during the breeding season, males may exhibit more vibrant red on their necks and a darker black crown.

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Red-Throated Diver

Red-Throated Divers are recognised by their grey and brown plumage and up-tilted bill. In summer, they are known for their characteristic red throat. They are agile in water but quite clumsy on land, coming ashore only for breeding.

Differences Between Male And Female Red-Throated Divers

There are no significant visible differences between male and female Red-Throated Divers. Both sexes share a similar grey-brown plumage, with males slightly larger in size.

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Red-Crested Pochard

Red-Crested Pochards are large diving ducks, boasting a length of 53-57cm and a wingspan of 85-90cm. These ducks are known for their remarkable appearance and robust build.

Differences Between Male And Female Red-Crested Pochards

Males are vibrant, featuring a rounded, orange head and a red bill, contrasting with a black breast and white flanks. The female, however, has palish brown body, white cheeks, and a brown cap.

In flight, both sexes display a thick white wing stripe and whitish underwings.

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Red-Breasted Merganser

Red-Breasted Mergansers are distinctive ducks, known for their slender, serrated bills and spiky crests. Measuring around 50 to 60 cm in length, with a wingspan of around 66 to 74 cm, these birds weigh between 800 and 1,350 grams.

Differences Between Male And Female Red-Breasted Mergansers

The males are particularly striking during breeding season with dark heads featuring a green shine, white necks, rusty breasts, black backs, and white lower bodies.

Females, in contrast, sport a rusty head with a greyish body. Juveniles resemble the females but do not have white collars and have smaller white wing patches.

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Pochard

The Pochard is known for its unique appearance. Male Pochards boast a vibrant red-brown head, contrasting with their black tail and breast, and a palish grey body during winter and spring. The females, more understated, are brown-coloured with a greyish body and pale cheeks.

Differences Between Male And Female Pochards

While males are distinctly coloured with vibrant heads and contrasting bodies, females are more subdued in their brown and grey plumage. However, during eclipse, which is when males grow new feathers, they resemble females more closely, sporting a more camouflaged look.

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Pintail

Slightly larger than a Mallard, the Pintail Duck stands out with its long neck and small head. In flight, its curved, pointed wings and elongated tail are its most distinctive features, making it easily recognisable among UK ducks.

Differences Between Male And Female Pintail Ducks

Male Pintail Ducks boast a striking chocolate head and neck with a creamy throat, while the females are more subdued in colour. Both sexes have long and slender darkish-grey bills, but it’s the male’s vibrant plumage that truly catches the eye.

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Mute Swan

The Mute Swan, a magnificent waterfowl, is wholly white in plumage with an orange beak bordered with black. Notable for its size, ranging from 125 to 160 cm in length, it’s recognized by its pronounced knob atop the beak, larger in males. These swans are characterised by their majestic S-shaped necks and powerful, slow wingbeats in flight.

Differences Between Male And Female Mute Swans

Males are generally larger with a more prominent knob on their bill. They also tend to be heavier than females. However, apart from these subtle differences, both genders share the same elegant white plumage and distinctive orange beak.

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Moorhen

Moorhens exhibit a blackish appearance with a notable yellow and red beak and vibrant green legs. On closer inspection, you’ll notice their dark brown-coloured back and wings, a blue and black belly, and distinctive white stripes on their flanks.

Their plumage showcases a mix of brown, black, and white feathers, making them quite distinguishable in their habitat.

Differences Between Male And Female Moorhens

Moorhens do not exhibit significant sexual dimorphism; males and females look very similar. Both have the same colouration and markings, making it challenging to distinguish between them based on appearance alone.

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Mandarin Duck

Mandarin Ducks are medium-sized and known for their remarkable plumage. Males are particularly striking with their bright colours and ornate feathers, while females are more subdued in colouration.

Differences Between Male And Female Mandarin Ducks

Male Mandarin Ducks exhibit a splendid array of colours, with purple, white, and orange feathers and distinctive orange “sails” on their back. Females are more camouflaged, featuring a mottled brown appearance with subtle white eye-stripes and a pale tip on their bill.

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Mallard

Mallards are large, distinctive ducks with a stout body and a broad bill. Males are notable for their striking green heads and yellow bills, while females display a mottled brown plumage with an orange and brown bill.

Differences Between Male And Female Mallards

Males, or drakes, have a vibrant green head and a white ring around their neck, separating the dark chest from the grey body. Females, or hens, have a speckled brown appearance, which provides excellent camouflage.

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Long-Tailed Duck

Long-Tailed Ducks are small, elegantly shaped sea ducks, notable for their round-shaped heads and steep foreheads. In winter, males are predominantly white with brown-black markings and exhibit remarkably elongated tail feathers, which are their namesake.

Females display a browner plumage. When flying, their dark wings contrast sharply with their white bellies.

Differences Between Male And Female Long-Tailed Ducks

Females are generally browner than males, who in winter boast a strikingly white appearance with distinct black markings.

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Little Grebe

Little Grebes are charming, small water birds with a distinct appearance. In summer, they sport a chestnut throat and cheeks, with a pale patch at the bill’s base.

Outside the breeding season, they have a more subdued look with buff plumage, but their ‘fluffy’ rear end is a year-round characteristic.

Differences Between Male And Female Little Grebes

Male and female Little Grebes are similar in plumage and size, though females can be slightly smaller. Both sexes undergo significant changes in appearance between seasons, making them a fascinating species to observe throughout the year.

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Egyptian Goose

Egyptian geese, members of the duck family Anatidae, are distinctive birds. They are 63–73 cm (25–29 in) long and appear heavy in flight, resembling geese more than ducks.

Both sexes have similar plumage, featuring grey and brown tones, with males being slightly larger. Their most striking features are the large white wing patches visible during flight and the chocolate brown patches around their eyes.

Differences Between Male And Female Egyptian Geese

While male and female Egyptian geese have similar plumage, males are generally larger with a more robust neck. Females tend to be slightly smaller and less vivid in coloration.

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Guillemot

The Guillemot, a member of the auk species, is a distinctive seabird known for its summer breeding on land. It’s slightly bigger than the razorbill and sports a brown head and upper body with a contrasting white lower body.

In good light, you can discern its brown colouring, which often appears black from a distance. Notably, its head, neck, and long, slender black bill blend smoothly, and its short tail leaves its feet protruding in flight.

Differences Between Male And Female Guillemots

Males and females are similar in appearance, making it a challenge to distinguish them in the wild. Both genders share the characteristic brown and white plumage and sleek black bill, with subtle size differences.

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Great Northern Diver

The Great Northern Diver, the largest of the UK’s divers, stands out with its hefty head and bill. Adults divers in breeding plumage display black-coloured backs with white spots, a glossy black head, and a necklace-like pattern on the neck.

Their bill is stark black, deep red eyes, and their legs are dark. In winter, they transition to a brownish-grey upper body with a white underbelly. Juveniles resemble adults in non-breeding plumage but with additional buffy scales on their upper parts.

Differences Between Male And Female Great Northern Divers

Males and females are similar in appearance, though males are generally larger and heavier.

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Great Crested Grebe

The Great Crested Grebe is a symbol of elegance on UK waters. Distinguished by its striking white and black plumage, this bird is the largest member of the grebe family in the Old World.

In summer, adults boast a black head with a ruff of chestnut and black, and a white face. The body is adorned in shades of grey-brown, rust, and white, while the bill is pinkish and it has deep red eyes. During winter, the plumage is duller and lacks the ruff.

Differences Between Male and Female Great Crested Grebes

Males and females share a similar appearance, although males tend to be slightly larger. Both sexes display the same intricate plumage and colours throughout the year.

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Goosander

Goosanders are handsome diving ducks known for their long, serrated bills, ideal for catching fish. With a length of 58-66 cm and a wingspan of 82-97 cm, these birds are a remarkable sight.

Differences Between Male And Female Goosanders

Male Goosanders boast a glossy green head and a striking blood-red beak. Their black wings and back contrast sharply with their white bodies, tinged salmon-pink during the breeding season.

Females and juveniles, on the other hand, have a gingery-orange head and grey body, with a clear delineation between the two.

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Goldeneye

Goldeneyes are distinctive ducks, known for their striking plumage and vibrant eyes.

Adult males showcase a glossy green head with a unique white patch between their eye and bill, set against a black and white body.

Females, on the other hand, are greyish-brown with a chocolate brown head and a whitish neck band. Both genders possess bright yellow eyes and black bills.

Differences Between Male And Female Goldeneyes

The most noticeable difference is in their colouration. Males have a bold, black and white pattern with a greenish-black head, while females display a subtler grey-brown plumage.

During the breeding season, these differences are more pronounced, with males exhibiting a more vibrant plumage.

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Garganey

Garganeys are petite dabbling ducks, smaller than Mallards but slightly larger than Teals.

The male is recognisable by its distinctive broad white stripe over the eye and pale blue forewing noticeable in flight. Their brown and black beaks and grey legs complement their predominantly cream, brown, grey, green, and blue plumage.

Differences Between Male And Female Garganeys

Male Garganeys in breeding plumage boast dark brown backs with pale fringes, a rust-coloured foreneck with white flecks, and a prominent white headband.

In contrast, females are more subdued, with a scalloped pattern on their bodies and less distinct head markings. Males in eclipse plumage look like females but retain stronger head markings and a white-coloured chin.

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Gadwall

Gadwalls, a species of dabbling duck, are known for their predominantly grey feathers, intricately patterned with fine stripes and speckling upon closer inspection.

They’re slightly smaller than Mallards, distinguished by a characteristic black rear and a noticeable white wing patch during flight. Adult males exhibit a striking white speculum, particularly visible both in flight and at rest.

Differences Between Male And Female Gadwalls

Gadwalls are known for their subtle yet elegant appearance.

The male Gadwall, particularly during the breeding season, boasts a patterned grey body, chestnut wings, a distinct black rear, and a striking white speculum.

Outside of breeding season, males resemble females but retain their wing patterns and are generally greyer with less orange-tint on their bills.

Female Gadwalls, on the other hand, are predominantly light brown, similar to female mallards but distinguishable by their dark orange on the edge of their bills, smaller size, white speculum, and white belly.

Both sexes undergo two annual moults after a juvenile moult.

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Cormorant

Cormorants are striking large, black waterbirds, easily spotted due to their size and colour.

With a wingspan of 130-160 cm and weighing between 2.1-2.5kg, they possess a reptilian-like neck and an almost prehistoric appearance. Their unique stance of standing with wings spread to dry is a familiar sight along UK coastlines.

Differences Between Male And Female Cormorants

Male and female Cormorants are similar in appearance, making it challenging to distinguish between them based on looks alone.

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Eurasian Coot

Eurasian Coots, known for their slate-black body and glossy black head, boast a striking white bill and frontal shield.

These birds typically measure 36–38 cm in length and have a wingspan of 70–80 cm. Their strong toes have partial webbing, aiding their swimming prowess.

Differences Between Male And Female Eurasian Coots

In Eurasian Coots, both sexes appear similar, making it a challenge to distinguish between them based on physical characteristics alone.

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Common Scoter

Common Scoters are distinctive seaducks with a robust build. The male is strikingly all-black with a yellow bill, while the female is a subtler dark brown with a paler face.

When flying, they form impressive lines along the coast and can be seen in large groups floating offshore.

Differences Between Male And Female Common Scoters

The male Common Scoter is easily identified by its entirely black plumage and distinctively yellow bill.

In contrast, the female is generally brown with lighter cheeks, making her more camouflaged against the coastal landscapes.

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Brent Goose

Brent Geese are small, dark geese, akin in size to a Mallard. They exhibit a black head and neck with a grey-brown back.

The belly’s colour varies depending on the subspecies.

Differences Between Male And Female Brent Geese

Both male and female Brent Geese are similar in appearance, with subtle differences in size. Adult Brent Geese have a distinguishing small white neck patch, making them easily identifiable.

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Black-Throated Diver

Black-Throated Divers are striking waterbirds, larger than Great Crested Grebes but smaller than Cormorants.

In summer, they display a beautiful black throat, a grey head, and neck, along with a distinctive black-and-white chequered back.

Come winter, their plumage transforms to dark grey above and white below, with a noticeable patch of white on the rear flanks.

Differences Between Male And Female Black-Throated Divers

The male and female Black-Throated Divers are visually similar, making it challenging to distinguish between them based on appearance alone.

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Bewick’s Swan

Bewick’s Swans charm observers with their elegant, compact bodies and slender necks. Adults showcase a pristine white plumage contrasted sharply by black beaks and legs.

One distinguishing feature is the males’ small black feather patch under the wings during breeding season—an absent trait in females and juveniles.

Typically smaller than the Whooper Swan, they possess a wingspan of 170-195 cm, and their heads appear more rounded with a delicate build.

Differences Between Male And Female Bewick’s Swans

Male Bewick’s Swans can be spotted by the unique black plumage displayed under their wings, known as breeding plumage.

Females and young swans, on the other hand, lack this characteristic. Males generally have a slightly larger and more robust form compared to the more slender females.

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Canada Goose

Canada Geese are a familiar sight with their distinctive black heads and necks contrasted by white cheeks and chinstraps. Their bodies are primarily brown, with large, powerful wings that span up to 180 cm. These features make them one of the most recognisable waterfowl species.

Differences Between Male and Female Canada Geese

Male and female Canada Geese are similar in appearance, but males are generally larger and have slightly thicker necks than their female counterparts. Observing their behaviour during mating season, when males display more aggressively, can also help distinguish them.

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Avocet

Avocets stand out with their striking black and white colouring and long, slender upturned bills.

These medium-sized waders display a unique pattern with a black cap that extends down their neck, contrasting vividly against their mainly white bodies.

Their lengthy, pale blue legs further accentuate their delicate appearance, making them unmistakable among UK waders.

Differences Between Male And Female Avocets

Male and female Avocets are similar in appearance, but a keen observer might notice that females sport slightly shorter and more curved bills compared to their male counterparts.

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Greylag Goose

The Greylag Goose, a majestic wild goose native to the UK and Europe, is the largest and bulkiest among its kind.

With mottled and barred grey and white plumage, complemented by an orange beak and pink legs, this bird is a sight to behold.

Differences Between Male And Female Greylag Geese

Male and female Greylag Geese are similar in appearance. However, males tend to be slightly larger and bulkier than their female counterparts, a subtle distinction observed more keenly in the field.

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