Yellow-crowned Elaenia

Small songbird, essentially identical in plumage to Arctic Warbler and Japanese Leaf Warbler. A late spring migrant, often moving up the Chinese coast from Southeast Asia in mid- to late May. Breeds in the taiga forests and forest edges of the Kamchatka peninsula, Hokkaido, Sakhalin, and the Kuril Islands. Call is a low “chuck,” averaging lower than that of Japanese Leaf and Arctic Warblers. Song is a broken series of chattering notes, with each segment being in more discrete phrases than the more consistent, higher-pitched song of Arctic.

Chunky hummingbird with a stout bill. Glittering green with a huge orange breast patch and purple forehead. Male has a black chin; female lacks this and has a short, whitish mustache stripe. Mainly a lowland species, but ranges well up into the eastern foothills of the Andes in some areas. Rather scarce in mature humid forest; occasionally visits feeders.

Rather large, wholly dark petrel. Breeds in New Zealand and ranges across the temperate South Pacific to Chile, where it is uncommon to locally fairly common in the Humboldt Current and fjords. Often found with much commoner, but very similar White-chinned Petrel and is not easily identified unless distinct black bill tip of Westland can be seen (White-chinned has pale bill tip). Slightly smaller Parkinson’s Petrel looks very similar to Westland, but favors warmer tropical and subtropical waters and has a smaller, more rounded head and slightly slimmer bill.