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The back is black with yellow mottlings, the rump is yellow, and the upper tail coverts are black with white tips. The wings and tail are black with conspicuous white spots, patches, and wingbars. Females are similar but the upperparts are more olive, with dark streaks on the crown and back.
Some of the infected animals show yellow and roundish nodules with a diameter of 0,5 – 1,0 cm under the eyelids, the beak and mouth. Lesions under the wing, the nasal area and the mouth commissure usually appear after a period of 10 – 12 days. [3] These symptoms are usually divided into two main forms. The skin and mucous progression. [4]
Wings are dark grey with varying levels of yellow highlighting. The ventral feathering is light grey to white with light grey scalloping on the chest. The feathering surrounding the eye is black. The beak and bare skin-patch around the eyes are bright yellow, and the iris is brown. Legs are also yellow, though shade and brightness varies.
The black-and-yellow tropical bird stares curiously into the camera overlooking a section of road near Auckland, New Zealand’s largest city, its beak open as it appears to squawk loudly ...
The black-and-yellow broadbill (Eurylaimus ochromalus) is a species of bird in the typical broadbill family Eurylaimidae. A small, distinctive species, it has a black head, breastband, and upperparts , a white neckband, yellow streaking on the back and wings, and vinous -pink underparts that turn yellow towards the belly.
The yellow warbler starts breeding in May/June, while the mangrove warbler breeds all year round. American yellow warblers have been known to raise a brood of young in as little as 45 days, with 75 the norm. Tropical populations, by contrast, need more than 100 days per breeding. Males court the females with songs, singing 3,200 or more per day.
White-faced cocks display brilliant white faces while hens display basically grey faces with some white streaks. With the availability of the Whiteface mutation, the cockatiel's wide colour varieties are divided into 2 main classes (or series): Yellow base: with psittacofulvin (yellow and orange) pigments. White base: without psittacofulvin ...
Its underparts are whitish, shading to grayish on the chest and buff on the flanks. Its legs are pinkish-brown, while the beak is horn-colored, with a darker culmen. Its iris is reddish brown. [2] The juvenile, which has no yellow on its face or wings, is buffier than adults are, with thin brownish streaks on its breast and flanks. [2]