Rufous-throated Flycatcher

The most migratory of the Asian white-eyes, this minute bird breeds in the boreal woodlands of far northeastern China and Russia and winters in southern China and northern Southeast Asia. Frequently migrates in immense flocks and can often be seen in gatherings of thousands on headlands and islands. Bright yellow-green upper body, white underparts, and striking white eye ring give this species the general white-eye look, but the broad brush-stroke of rufous on the flanks distinguishes it from similar species. Vocalizations consist largely of high, sweet, rising “sweee”s.

An uncommon migrant songbird through Taiwan, rarely encountered anywhere away from breeding grounds on Izu and Tokara Islands, Japan. Olive above and whitish below; best distinguished from similar species by narrow bill with yellowish lower mandible, brownish-pink legs, and weak head pattern. Prefers mature coastal broadleaf forests but uses bamboo patches and conifers during migration as well. Smaller than Eastern Crowned Leaf Warbler, with thinner bill and no crown stripe. Song consists of a series of trills; calls, given often, include a descending “twee” or quiet “pee.”

Small but rather stocky and stout-billed petrel of subtropical eastern Pacific and Humboldt Current; not seen from mainland. One of several similar species, Masatierra is best identified by gray head and collar at sides of neck, rather stout bill, and plain grayish tail without a black tip. Much smaller than Juan Fernandez Petrel with quick wheeling flight unlike more easy and less hurried-looking flight of Juan. Also compare with Stejneger’s and Cook’s Petrels.