Rufous-necked Sparrowhawk

A chunky, dingy-looking, thick-billed songbird. Upperparts dark olive-brown, with a grayish head and a pale buff wash on the underparts. Note the pale bill with a dark tip. A rare species confined to canopy of tall, mature hill forest on Sangihe Island at sites where this habitat persists on ridges. Typically encountered in small groups or pairs. Most similar to Sangihe Golden-Bulbul, but Sangihe Whistler has a bicolored bill and lacks a yellow throat and face. Its loud song consists of around four repeated phrases. Also gives “churr” and sharp “wit” calls.

A chunky weaver with a long, relatively thin bill. The male is distinctive and beautiful, with black upperparts, rusty sides, and a yellow belly. The much duller female is olive-gray above with a dark breast band. Both sexes have a pale eye. Found in forest, plantations, and marshes, often in flocks. Can range widely when not breeding. The female is similar to female Vieillot's Weaver, but has a slightly slimmer bill and darker breast, and is usually associated with the distinctive male. The vocalizations include typical weaver “chek” notes and “radio static” songs. 

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.