Starling Diet and Size: Feeding Habits, Predators, and Measurements
Starlings are roughly the same size as blackbirds with short tails, short, pointed wings and long beaks. When seen in flight they look like a 4 pointed star, which is how they got their name.
From a distance they look black but when seen up close, they have greenish-purple iridescence and bright yellow beaks. In winter, they have a brown plumage covered in bright white spots.
In this article we’ll be looking at the dietary habits, breeding habits and the size and conservation status of these common garden birds. Keep reading to find out more.
Table of Contents
The Dietary Habits Of The Starling
Starlings have a diverse diet, which helps them adapt to various environments.
What Does A Starling Eat?
They are omnivorous and will eat a mix of many different foods such as; beetles, flies, grasshoppers, caterpillars, earthworms, snails, slugs, spiders, seeds, grains, berries, apples, grapes and cherries.
They will also eat human food scraps and are often seen scavenging through rubbish bins in towns and cities all around the UK.
What To Feed A Baby Starling?
Parents feed their chicks on a nutrient rich high protein diet which includes; soft bodied insects like caterpillars, beetles and flies. As well as earthworms, slugs and insect larvae.
This high-protein diet is essential for the rapid growth of the chicks. As the chicks get older, they may be introduced to a more varied diet similar to the adult starlings.
Breeding Habits Of Starlings
The breeding season for Starlings typically runs from late March through to July depending on geographical location and the climate. In more temperate areas, they will often raise 2 broods each year.
Males will sing elaborate songs from elevated perches, often mimicking other birds or environmental sounds. This singing is a primary way to attract females and is done in the early morning or late afternoon.
Males perform fluttering or wing-waving displays while perched, showing off their glossy, iridescent plumage to attract a mate. They also fan out their tails and puff out their chests to make themselves appear larger.
Do Starlings Mate For Life?
Although they do not mate for life, once a pair bonds, they are generally monogamous for the season. Although extra-pair copulations (mating outside the pair bond) can occur.
The following year each bird will find a new mate for that breeding season.
The Size & Weight Of Starlings
Starlings are medium-sized birds, similar in size to Thrushes.
How Much Does A Starling Weigh?
The average weight of an adult Starling is around 75 to 90 grams. This is roughly the same weight of a good quality table knife.
How Big Is A Starling?
Starlings are around 21 cm in length with a wingspan of around 37 to 42 cm. Which is around the same size as a Redwing, but the Starling has a wider wingspan.
Are Starlings Under Threat?
Starlings are not currently under threat globally and are classified as Least Concern by the International Union for Conservation of Nature (IUCN). Despite this, their population has seen significant declines in some regions, particularly in Europe, due to a variety of factors.
However, in other parts of the world, particularly where they have been introduced (like North America), their populations remain stable or even growing.
In Europe, particularly in agricultural areas, changes in land use, modern farming practices, and urbanisation have reduced suitable nesting sites and feeding grounds for starlings. The decline in insect populations due to pesticide use also affects their food sources, particularly during the breeding season when they need high-protein food for their chicks.
Although starlings aggressively compete for nesting sites, they face competition from other cavity-nesting birds such as woodpeckers and sparrows, especially in areas where suitable nesting spots are limited.
Changes in temperature and weather patterns due to climate change, can affect their breeding success and the availability of food, especially in colder regions.
Despite these challenges, common starlings have proven to be highly adaptable and resilient, maintaining strong populations in many parts of their range.
What Eats A Starling?
Starlings have a number of natural predators especially during breeding, nesting and roosting. Predators include; Hawks, Falcons and Owls. In particular, Peregrine Falcons are known to hunt adult Starlings particularly when they form large flocks during murmurations. Sparrowhawks also prey on adult Starlings.
Cats, foxes and raccoons also prey on Starlings as well as their eggs and chicks. Squirrels, snakes, Magpies and Crows will raid Starling nests and take eggs and chicks.
Despite these predators, the starlings’ ability to form large flocks provides some protection through safety in numbers. Their adaptive behaviour, wide-ranging diet, and aggressive nature help their resilience as a species.
Where Can I See Starlings In The UK?
Starlings are widespread throughout the UK and can be seen in a number of habitats at different times of the year. Starlings thrive in built-up areas, where they can easily find food and nesting sites. They are commonly seen in parks, gardens, and rooftops, and are frequent visitors to bird feeders.
They are also often spotted in agricultural areas where they forage for insects, seeds, and grains. They are particularly fond of open, grassy fields, pastures, and areas with livestock.
Although starlings prefer open spaces, they also make use of woodlands and hedgerows, especially when it comes to nesting. They can be seen around the edges of forests and groves.
In winter, large flocks of starlings can be found along coastal areas, particularly around estuaries, wetlands, and saltmarshes. These areas provide abundant food during the colder months. Starlings can often be seen roosting in large numbers on coastal piers and cliffs as well.
One of the most famous and spectacular behaviours of starlings is their murmurations, the massive, swirling flocks they form during the autumn and winter months. Some of the best places to see a Starling Murmuration include;
- Brighton Pier
- The Somerset Levels
- Gretna Green (Scotland)
- Leighton Moss (Lancashire)
- Aberystwyth Pier (Wales)
As well as numerous RSPB sites throughout the UK. Your best chance of observing a Starling murmuration is in Autumn or Winter when the UK population swells with an influx of European Starlings.
SEE ALSO: Common Raven Diet and Size: Feeding Habits, Predators, and Measurements
Frequently Asked Questions
Starlings eat insects, fruits, seeds, and grains. They also scavenge for food in urban areas, eating human food scraps.
The breeding season for Starlings usually runs from April to July, though this can vary based on the localised climate.
A Starling murmuration is a large, swirling flock of starlings that gather at dusk during autumn and winter, often performing coordinated aerial displays before roosting.
