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The upperwing coverts fall into two groups: those on the inner wing, which overlay the secondary flight feathers, known as the secondary coverts, and those on the outer wing, which overlay the primary flight feathers, the primary coverts. Within each group, the feathers form a number of rows.
The underparts including the throat and undertail coverts are pale to medium cinnamon. Their tail's central pair of feathers are golden green with a rufous shaft and the other four pairs dark rufous that pales towards the end, a black and bronzy green band near the end, and thin white tips.
omnivores (sometimes called general feeders): birds that forage for a variety of both plant and meat food sources, such as pheasants, tinamouses and quails. More birds fall under the omnivore classification than any other. [146] piscivores: birds that forage for and eat fish and other sea life, such as darters, loons, pelicans, penguins and storks.
The back and wings are cinnamon brown. The rump, undertail-coverts and edges of the tail are orange yellow. The breast, belly and flanks are creamy-white. The ventral region, thighs, and undertail-coverts are black. The bill is a neat stout cone, blue-grey in color. The iridaws are chestnut, and the legs variable from grey to dark grey.
The undertail coverts, which may be of the same colour depending on the subspecies, have a large white border at the end of the feathers or a white patch near the tip. [12] The species does not show marked sexual dimorphism. The male's rear flanks are deep brick-red, deeper and less orange than the undertail coverts, whereas the female's flanks ...
Adult female in Livermore, California. The western bluebird is a small stocky bird with a length of 15 to 18 cm (5.9 to 7.1 in). The adult male is bright blue on top and on the throat with an orange breast and sides, a brownish patch on back, and a gray belly and undertail coverts.