MacGillivray's Prion

Uncommon, inconspicuous raptor with a fairly small bill. Adult has a pale head and reddish underparts with black streaks on neck. Juvenile has a more reddish head with less streaking. In flight, tail has obvious square corners with a dark band at the base. Sails over forest woodland habitats just above the tree canopy, typically with little wing movement. Occurs singly or in pairs. At a distance, and particularly when heavily worn, take care to identify juvenile birds from Black Kite, which has more uniformly patterned plumage.

A long-tailed, slender songbird with fine bill. Males rich blue-gray above, white below, with a blue-gray bib with convex lower edge (curves upward at the edges). Crown paler than throat, lending male a bearded appearance in optimal light. Male Satin Flycatcher has uniformly dark head, blackish (not grayish) tail feathers, and concave bib edge. Female paler blue-gray above, with pale orange throat and breast. Inhabits varied woodlands, perches high in the canopy, often shakes the tail rapidly. Song a repeated two-note whistle; call a loud buzzing “zerp.”

Small hummingbird endemic to the Marías archipelago, located about 60 miles off the Pacific coast of central Mexico. Male is glittering green with and iridescent throat and bright red bill. Female is gray underneath with a dark mask bordered with white, and red at the base of her bill. The only other hummingbird on the islands is the very different Cinnamon Hummingbird. Inhabits scrub, woodland, and gardens on all four of the islands.