Lesser Black-Backed Gull Diet and Size: Feeding Habits, Predators, and Measurements
The Lesser Black-Backed Gull (Larus fuscus) is a distinctive seabird that frequently graces the British coastline. Known for its dark grey-black back, yellow legs, and piercing yellow eyes, this medium sized gull has adapted remarkably well to both coastal and inland environments.
In this article, let’s learn about their dietary preferences, breeding patterns, physical characteristics, and conservation status in detail.
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The Dietary Habits Of The Lesser Black-Backed Gull
Lesser Black-Backed Gulls have evolved to become highly adaptable feeders, demonstrating impressive versatility in their foraging strategies across various environments.
What Does A Lesser Black-Backed Gull Eat?
Lesser Black-Backed Gulls are omnivorous scavengers with a remarkably diverse diet that includes small fish, crustaceans, worms, starfish, molluscs, seeds, berries, small mammals, eggs, and small birds. In urban environments, they readily adapt to human presence, scavenging scraps, offal, and carrion.
Their opportunistic feeding habits make them successful in both natural and human modified environments. These gulls are known for their bold behaviour, sometimes stealing food from other birds, which demonstrates their intelligence and adaptability in securing food resources.
Their feeding patterns often change seasonally, with different food sources becoming more important at different times of the year. During the breeding season, they tend to focus more on high protein food sources to support their growing chicks.
What To Feed A Baby Lesser Black-Backed Gull?
Baby Lesser Black-Backed Gulls require a protein rich diet provided by both parents, making them one of the few bird species where parental feeding duties are shared equally. The parents carefully select and regurgitate partially digested food suitable for their chicks.
As the chicks develop, parents gradually introduce a wider variety of food items, helping them develop the diverse feeding habits they’ll need as adults. The juvenile period is quite extended, taking four years for young gulls to achieve their adult plumage.
Breeding Habits Of Lesser Black-Backed Gulls
The Lesser Black-Backed Gull’s breeding habits reflect their adaptability, enabling them to reproduce successfully in diverse environments.
Do Lesser Black-Backed Gulls Mate For Life?
Lesser Black-Backed Gulls typically form long-term pair bonds and often return to the same nesting sites year after year. They breed in coastal areas of northern Europe and Russia, choosing rocky islands, saltmarshes, cliffs, and islands in rivers and lakes for their nesting sites.
In urban environments, they’ve adapted to nesting on rooftops, demonstrating their remarkable adaptability to human modified landscapes. The breeding season involves both parents participating in nest building, incubation, and chick-rearing duties.
The Size & Weight Of Lesser Black-Backed Gulls
These gulls are medium sized seabirds, notably smaller than Herring Gulls but larger than Ring-billed Gulls.
How Much Does A Lesser Black-Backed Gull Weigh?
Adult Lesser Black-Backed Gulls typically weigh between 620 to 1,000 grams.
This relatively light weight, combined with their impressive wingspan, enables them to be agile flyers capable of navigating both coastal and urban environments effectively.
How Big Is A Lesser Black-Backed Gull?
Lesser Black-Backed Gulls measure 52 to 64 centimetres in length with a wingspan of 135 to 150 centimetres.
This size allows them to maintain excellent manoeuvrability while flying, whether they’re navigating urban landscapes or soaring along coastlines.
Are Lesser Black-Backed Gulls Under Threat?
Lesser Black-Backed Gulls are currently Amber listed in the UK Birds of Conservation Concern.
Globally, they are listed as Least Concern on the IUCN Red List of Threatened Species. Their adaptability and successful integration into urban environments have helped maintain stable populations.
What Eats A Lesser Black-Backed Gull?
Adult Lesser Black-Backed Gulls have few natural predators, but their eggs and chicks are vulnerable to various threats.
Large raptors might prey on adults or juveniles, while ground predators like foxes and rats can pose significant threats to eggs and chicks, particularly in urban nesting sites.
Where Can I See Lesser Black-Backed Gulls In The UK?
Lesser Black-Backed Gulls can be seen throughout the UK during all months of the year.
During migration and winter, they frequent various aquatic habitats, including lakes, bays, beaches, rivers, landfills, and the open ocean. Their presence in urban areas has increased, making them a common sight in many British cities.
SEE ALSO: Lesser Black-Backed Gull Life Cycle: Nest Building To Fledging (and everything in between)
Frequently Asked Questions
Lesser Black-Backed Gulls produce a distinctive ‘laughing’ cry that is deeper in pitch than that of the Herring Gull, making them relatively easy to identify by sound.
Lesser Black-Backed Gulls can live for over 30 years in the wild, though the average lifespan is typically shorter due to various environmental factors and challenges.
It takes four years for juvenile Lesser Black-Backed Gulls to develop their full adult plumage, during which time they go through several distinct plumage phases.
