Varzea Thrush

Small island specialist; a "classic" fantail, with long, pale-tipped tail and slim bill. Plumage extremely geographically variable, and likely involves multiple species. Most populations have some rufous on the back and rump, but birds on small islands off of western Papua and parts of the Banda Sea are entirely brown above. Note black mask in most populations, and a black necklace with a variable amount of additional black spotting on the chest. Frequently cocks and fans tail. Actively forages near the ground in areas with dense vegetation, including mangroves. Previously considered the same species as Rufous Fantail, and more recently, Arafura Fantail.

Small gray swift with a slightly paler rump and belly. Flight is fast but erratic, with the wings pushed forward. Nests in caves, but can be seen in flight over all habitats on the islands of Mauritius and Reunion. The calls include high-pitched twitters and echolocation clicks. Usually easy to identify, as it is the only resident swift on the Mascarenes. Occurs alongside Mascarene Martin, but distinguished by the gray rather than brown overall coloration, unstreaked underparts, and more erratic flight style. 

Tiny, greenish warbler that breeds in boreal forest. Breeding males have lime-green back, pale blue-gray head, and dingy whitish underparts. Females and immatures generally show more yellow overall, but still dull. Note thin dark line through the eye, paler eyebrow, and whitish undertail coverts. Most similar to Orange-crowned Warbler. Look for cleaner, unstreaked breast and white (not yellow) undertail coverts. Loud song for such a small bird; usually three-parted series of accelerating chips. Often found around flowering trees during migration. Winters in Central and South America.