Species Profile
Rook
Corvus frugilegus
Rook
Quick Facts
Conservation
LCLeast ConcernAlso known as: European Rook
Gallery
Appearance
The Rook is a medium-sized corvid with glossy black plumage that shows purple and blue iridescence in sunlight. It has a distinctive bare, greyish-white face and a slender, grey bill that appears slightly down-curved.
Adult Rooks have shaggy, loose feathers on their legs, giving them a 'baggy trouser' appearance. Females are similar to males, although they are generally smaller.
Juveniles lack the bare face patch and have a dark bill base, which gradually becomes bare as they mature.
Identification & Characteristics
Colors
- Primary
- Black
- Secondary
- Purple
- Beak
- Grey
- Legs
- Black
Attributes
Understanding Attributes
Rated 0–100 based on research and observation. A score of 50 is average across all bird species. These attributes are relative and don't necessarily indicate superiority.
Habitat & Distribution
Rooks are widely distributed across Europe and parts of western Asia. They thrive in open agricultural landscapes, grasslands, and urban parks with large trees for nesting. In the UK, Rooks are common and widespread in rural and suburban areas.
During winter, some northern populations migrate southward, while others remain resident year-round, especially in milder regions of western Europe.
They have also been successfully introduced to New Zealand, where a breeding population has been established.
Distribution
Where to See This Bird
Explore regional guides for locations where this bird has been recorded.
Wales
United Kingdom
England
Northern Ireland
Scotland
Cambridgeshire
Rutland
Bedfordshire
Buckinghamshire
Berkshire
Cheshire
Cornwall
Cumbria
Derbyshire
Devon
Gloucestershire
Dorset
Durham
East Riding of Yorkshire
Essex
East Sussex
Hampshire
Herefordshire
Hertfordshire
Isle of Wight
Kent
Merseyside
Lancashire
Leicestershire
Lincolnshire
Manchester
Northumberland
Norfolk
Northamptonshire
Nottinghamshire
North Yorkshire
Oxfordshire
South Yorkshire
Tyne and Wear
West Midlands
Suffolk
Shropshire
Somerset
Surrey
Staffordshire
Warwickshire
Wiltshire
West Yorkshire
Worcestershire
West Sussex
Diet
Rooks are omnivorous, with a diet primarily consisting of invertebrates, grains, and seeds. They forage extensively on agricultural land, consuming earthworms, leatherjackets, and crop seeds. They also opportunistically eat small vertebrates like rodents, eggs, fruits, berries, and carrion when available.
Rooks find most of their food on the ground or in the soil, but they also visit bird tables. These intelligent birds are known to cache their food by burying it in the ground and covering it with leaves or soil.
Behaviour
Rooks are highly social birds, often seen foraging in large flocks on open fields. They use their strong bills to probe the soil for invertebrates and seeds.
Rooks are known for their intelligence and problem-solving abilities, often using tools to access food sources.
Calls & Sounds
Rooks are vocal birds with a range of calls. Their most common vocalisation is a loud, harsh 'caw' or 'kaah', often repeated in series.
During the breeding season, they produce softer, more varied calls, including guttural croaks and warbling sounds. Young Rooks make distinctive begging calls when soliciting food from parents.
Nesting & Breeding
Rooks are colonial nesters, forming large, noisy rookeries in tall trees. Breeding typically begins in March, with pairs engaging in aerial displays and mutual preening. Nests are built high in trees using twigs and lined with softer materials.
Females lay 3-5 pale blue-green eggs with brown speckles. Both parents share incubation duties for about 16-18 days. Nestlings are altricial and remain in the nest for approximately 32-36 days before fledging.
Young Rooks often return to their natal colonies to breed, contributing to the long-term stability of rookeries.
Conservation
While currently listed as Least Concern, Rook populations have experienced declines in some parts of Europe. Changes in agricultural practices and land use have impacted their foraging habitats.
Conservation efforts focus on maintaining suitable nesting sites and promoting sustainable farming practices.
Elevation
Up to 1,000 meters
Additional Details
- Predators:
- Adult Rooks have few natural predators, but eggs and nestlings are vulnerable to corvids, raptors, and climbing mammals such as pine martens and squirrels.
Birdwatching Tips
- Look for Rooks in open farmland, especially near nesting colonies
- Observe their distinctive bare face patch to differentiate from other corvids
- Listen for their characteristic 'caw' call, often heard in groups
- Watch for their unique walking gait and probing behaviour while foraging
Did You Know?
- Rooks can recognise and remember human faces, demonstrating remarkable cognitive abilities.
- They have been observed engaging in 'anting', rubbing ants through their feathers, possibly for pest control.
- Rook colonies, called rookeries, can persist in the same location for centuries.
Community Photos
Be the first to share a photo of the Rook
Upload a PhotoSimilar Species
Related Articles
What is a Group of Crows Called? (And Why?)
15 Sept 2021
Crows in the UK: Complete Guide to 8 Species
27 Jul 2022
Crows: What They Eat and How They Find Their Food
<ul><li>Crows are omnivorous and highly adaptable, consuming a diverse diet including insects, fruits, small animals, carrion, and human leftovers, depending on their environment.</li><li>Known for their intelligence, crows use tools and complex methods to find and access food, and they can recognize and remember humans who feed them regularly.</li><li>In natural habitats, crows feed on a variety of insects, small animals, fruits, and nuts, but in urban areas, they often scavenge for garbage, human food, and pet food.</li><li>While feeding crows can lead to a reciprocal relationship, it's important to consider ethical aspects, as overdependence on human-provided food may disrupt natural behaviors and local ecosystems.</li></ul>
22 Nov 2021
Identify Any Bird Instantly
- Upload a photo from your phone or camera
- Get an instant AI identification
- Ask follow-up questions about the bird
Monthly Birds in Your Area
- Personalised for your location
- Seasonal tips and garden advice
- Updated every month with new species