The rook (Corvus frugilegus) is a member of the family Corvidae in the passerine order of birds. It is found in the Palearctic, its range extending from Scandinavia and western Europe to eastern Siberia.

Rook eggs are about 4cm long, green and occasionally covered with dark spots all over. The eggs are laid in a large nest made of twigs, which is padded with various materials.

Worms, beetles and other invertebrates are the rook’s main food, which it catches by probing the ground with its large beak. It will also feed on grain, fruit, acorns and occasionally carrion and birds’ eggs.

Rooks are colonial nesters, building their nests within a metre or two of their neighbours. Once established, these rookeries can be enduring; some are known to have been in use at the same site for over 100 years. The Rook is a widespread and common bird, found all across the UK.

Jun 3, 2023 · Discover the fascinating world of rooks, large Corvidae birds found throughout Eurasia. Learn about their appearance, expert egg-robbing skills, unique anting behavior, special memory, and preference for local breeding grounds. Also, explore the similarities and differences between rooks and their crow cousins.

Rooks (Corvus frugi­le­gus) lay two to seven (av­er­age four) blue-green eggs that are cov­ered with brown and grey mot­tling. Rook eggs are very sim­i­lar in ap­pear­ance to those of ravens (C. corax), though slightly smaller, on av­er­age 40 mm long. After 16 to 18 days of in­cu­ba­tion mainly by the fe­male, the young hatch blind and help­less.

Like all corvids, Rooks are opportunistic, resourceful birds, and they have a broad diet including insects, seeds, small birds and eggs, as well as small mammals. Rooks nest communally in the top branches of mature trees. These ‘rookeries’ can be very large and distinctive, with the messy nests clearly visible in bare branches over winter.

Jul 15, 2023 · The female rook lays a clutch of 3-5 eggs. The eggs are incubated for about 16-18 days before hatching. Rook chicks are altricial, meaning they are born naked and helpless. They rely on their parents for food and protection until they are able to fend for themselves.

Facts About The Rook Diet: Rooks will eat almost anything, including worms, grain, nuts and insects, small mammals, birds (especially eggs and nestlings) and carrion. Length: 44-46cm Wingspan: 81-99cm Weight: 280-340g Scientific Name: Corvus frugilegus The Rook Can Be Seen In The UK During The Following Months January February March April May ...

Rooks lay 2-7 blue or greyish-green eggs with dark spots. The female incubates the eggs for 16-18 days. Chicks are fed by both parents and they fledge at 30-35 days after hatching. Both parents will continue to feed the chicks for another 6 weeks. What do rooks eat?