Behavior: Arboreal, diurnal, migratory, territorial. The Blue-bellied Roller is a large bird, nearly the size of a Jackdaw at 28-30 cm. What is the difference between the Emu and the Rhea? Kingfishers, Bee-eaters and Rollers: A Handbook. The Blue-Bellied Roller is mainly blue, with a dark-green back, and white head, neck, and chest. Blue-bellied roller Not many birds have tail streamers. The Blue-Bellied Roller (Coracias cyanogaster) is a medium-sized bird. The tail streamer on an adult is 6 cm long.They have very keen eyesight and are among the first birds to come to a grassfire, termite hatch or locust swarm. They can reach 12 inches in length and average five ounces in weight. It grows to 28-30 centimetres (11-12 inches) tall, with a wingspan of 58 centimetres (23 inches). The Blue-Bellied Roller (Coracias cyanogaster) is a medium-sized bird. The Blue-Bellied Roller makes a nest in holes in trees. Mackworth-Praed, C.W. Not sexually dimorphic. Its tail has streamers which trail behind it when it flies. It has a heavy, black beak which accentuates the white head. Blue-bellied Roller February 02, 2012 Blue-bellied Rollers are very striking blue, teal, and buff birds that live in the forested areas of western and central Africa. The male and female roller will incubate the eggs though it is unclear how much time the male spends in this role. Its tail has streamers which trail behind it when it flies. Blue-bellied rollers are usually seen in pairs, though there is evidence that males will court and mate with multiple females. It is a large bird, 34 – 36 cm (14 – 15 in) including the long forked tail. "Social, sexual and pseudosexual behavior of the Blue-bellied Roller, Coracias cynogaster: the consequences of crowding or concentration" Smithsonian Contributions to Zoology, 491:1-23. and C.H.B. Post was not sent - check your email addresses! All rights reserved. The Blue-Bellied Roller is mainly blue, with a dark-green back, and white head, neck, and chest. They will also frequent grass fires to catch the fleeing insects. Blue-bellied rollers make some seasonal movements but no great migration. Azure-blue, slightly forked tail. The IUCN Red List of Threatened Species 2016: e.T22682908A92967763. Princeton University Press. Oakland Zoo has blue-bellied rollers on exhibit to educate the public about this bird. Little Egret, Intermediate Egret, Great Egret: what’s the difference? Groups of blue-bellied rollers are usually from 3 to 7 individuals, though they can be larger. They are conspicuous and usually noisy birds. This trait also helps other animals who are also beleaguered by pest insects. © 2020 Oakland Zoo. "Blue-bellied Rollers, Coracias cyanogaster." They have a strong body and a crow-like beak widened at the base. Blue-bellied rollers mostly eat insects but will also eat small reptiles and oil palm fruit. It has a thick short black beak, dark eyes, and pale-yellow legs. They will also attack other animals together to defend their territory. It has a dark green back, white head, neck and breast, with the rest of the plumage mainly blue. Courtship involves fast chases on the wing with the following bird breaking away and rocketing earthwards, rolling from side to side and calling raucously all the while. Breeding typically occur from April to July, with females laying two to… Learn how your comment data is processed. The female lays about 6 eggs. Keen eyesight can spot termite hatch or locust swarm from a distance. Cream colored head and chest, pale blue belly and dark blue or dark green wings. Blue-bellied rollers usually lay 2 to 3 eggs in one clutch. They nest in holes in trees and lay two or three white eggs. These striking birds feed primarily on large insects. Populations are decreasing but not at a high rate, leading to their listing as Least Concern by the IUCN. This site uses Akismet to reduce spam. Coracias cyanogaster. They are often a focus of feeding talks because of their amazing in-flight feeding. The outer tail feathers are 6 cm long and called tail streamers. The three anterior toes are joined along their basal segments. They frequent the topmost branches of tall trees from which they indulge in wild erratic flights, accompanied by loud cries and attack any large bird that passes. Martina Nicolls is the author of Similar But Different in the Animal Kingdom and other books. What is the difference between the Eurasian Eagle-Owl and the Great Horned Owl.