Green-backed Kingfisher

A medium-sized typical nightjar with a golden-buff collar. Both sexes have small pale marks in the outer wings and at the corners of the tail. These are larger and whiter on males, and smaller and more buffy in females. Generally local and uncommon in savanna and grassland habitats, often in rocky areas. Similar to Nubian Nightjar, but darker overall, with less rufous in the wings. Also similar to many other nightjars, and best identified by voice. Call is a high-pitched, mechanical trill, similar to that of Plain Nightjar, but slightly lower-pitched.

Medium-sized swift, very similar to Common Swift, but is noticeably paler, especially against a dark background. Wings are narrower and very pointed and the tail is longer and more deeply forked than Common or Pallid Swifts. Pale throat patch not distinct and difficult to see. Flight is very fast, agile, and erratic. Gives a shrill, wheezy scream that “hiccups” at the end. Breeds primarily on Madeira and the Canary Islands, but may move to North Africa in winter.

Dark brown, fork-tailed seabird of the northwestern and central Pacific, where it breeds on Japanese and Hawaiian islands. Generally forages far offshore and does not associate with boats. Dark chocolate-brown overall with prominent pale carpal bars. In optimal light, rump is slightly paler than the plumage of the back and tail, unlike in Markham’s and Leach’s Storm-Petrels; in fresh plumage, note gray sheen to head and back. Lacks the distinctively pale primary shafts of Matsudaira's and Swinhoe’s Storm-Petrels.