Karoo Bustard

A medium-sized, rather robust and long-tailed warbler, with a noticeably stout bill. Variable plumage, from bright adult males with extensive yellow throat to extremely dull grayish-brown immature females. Always look for two white wingbars, diffuse streaking on the sides of the breast, large bill, and long narrow tail with a shallow notch. Well-named: almost always found in pine trees throughout the year. In spring and summer, listen for loud musical trill (compare with Chipping Sparrow and Dark-eyed Junco). Occasionally visits feeders, especially for suet. A short-distance migrant, wintering entirely in the United States.

A small sunbird with a relatively short, slightly downcurved bill. Males are a beautiful mix of green, purple, red, and yellow. Females are fairly drab, with a dark-streaked pale breast and a yellow belly. Found in all habitats on the island of Mayotte, though most common in scrubby habitat rather than in forest. In its small range, it is the only sunbird, so it is easily identified by its bill shape. The song is a typical sunbird jumble of high-pitched notes, and the call is a rising whine. 

An unusual and colorful rainforest bulbul. The upperparts are dark olive-green and the underparts yellow. There are yellow spots at the corners of the tail and blue bare skin above the eye. Found in the understory of rainforest and lush secondary habitat. Sometimes joins mixed flocks and follows ant swarms. The calls are chirpy notes typical of bulbuls. Similar to Gray-headed Bristlebill, but separated by the olive-green rather than gray head, as well as the blue bare skin above the eye. Also similar to Red-tailed Bristlebill, but easily separated by the green tail. The song is a series of melancholy whistles which usually descend, and which are very similar to some vocalizations of Red-tailed Bristlebill.