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In addition, the front edge of the wing is covered with a group of feathers called the marginal coverts. Within each group of wing coverts, the rows of feathers overlap each other like roof tiles (the greater coverts are overlain by the median coverts, which in turn are overlain by the outermost row of lesser coverts, and so on).
Some birds, like galahs (also known as the rose-breasted cockatoo), have modified crests that have both recumbent and recursive features. [122] A grey catbird, with its distinctly coloured crissum on display crissum The feathered area between the vent and the tail. Also, the collective name for the undertail coverts. [125]
External anatomy of a typical bird: 1 Beak, 2 Head, 3 Iris, 4 Pupil, 5 Mantle, 6 Lesser coverts, 7 Scapulars, 8 Coverts, 9 Tertials, 10 Rump, 11 Primaries, 12 Vent, 13 Thigh, 14 Tibio-tarsal articulation, 15 Tarsus, 16 Feet, 17 Tibia, 18 Belly, 19 Flanks, 20 Breast, 21 Throat, 22 Wattle, 23 Eyestripe Topography of a typical passerine.
The toco toucan (Ramphastos toco) is a species of bird in the toucan family Ramphastidae. It is the largest species of toucan and has a distinctive appearance, with a black body, a white throat, chest and uppertail-coverts, and red undertail-coverts. Its most conspicuous feature is its massive beak, which is yellow-orange with a black base and ...
The pied currawong is generally a black bird with white in the wing, undertail coverts, the base of the tail and most visibly, the tip of the tail. It has yellow eyes. Adult birds are 44–50 cm (17–20 in) in length, with an average of around 48 cm (19 in); the wingspan varies from 56 to 77 cm (22 to 30 in), averaging around 69 cm (27 in).
These birds mainly forage on the ground in leaf litter, but also in shrubs and trees. They mainly eat arthropods and berries . In the winter months, Cymbopetalum mayanum ( Annonaceae ) and Trophis racemosa ( Moraceae ) bear fruit well liked by this species, and such trees can be planted to attract the gray catbird into parks and gardens.
The rest of its upperparts are bright metallic green. Its tail is black with a green to bronzy green gloss. The next to outermost pair of tail feathers is very long, giving the species its English name. The male's face and most of its underparts are metallic yellowish green; the undertail coverts are blue-black or black with a bluish gloss. The ...
The undertail coverts are black towards the centre but white on the sides. [11] Several of the subspecies formerly placed within Parus major are now placed in this species (all of which have a grey rather than greenish back [2] [11] [12] as adults, although young birds show some green on the back and yellowish on the underside [13]).