White-throated Manakin

Large pigeon of marshy savannas, riversides, open areas with scattered trees, locally even in towns, such as Villahermosa, Mexico. Gray head contrasts with pinkish body, and whitish belly does not contrast strongly with plain grayish tail; compare darker Red-billed Pigeon, which often occurs in same areas but prefers drier and more forested habitats. Also note black bill of Pale-vented, and subtly distinctive song: after long introductory coo, repeated phrase is typically a 3-syllable "who’koo-koo", unlike 4-syllable "oo’koo-koo-koo" of Red-billed.

A medium-sized prion. The dark “M” across the back is found in all the prion species, but is noticeably less pronounced on the Slender-billed Prion. Slender-billed Prion has a very pale face, prominent white eyebrow, and very narrow black tip to the upper tail. As suggested by its name, the Slender-billed Prion has the thinnest and least robust bill of the prion species. Breeds on islands in the southern Indian Ocean, the Falklands, and around subantarctic South America while ranging throughout southern oceans during the nonbreeding season. Very difficult to distinguish from other prion species at sea, but distinguishable with careful observation of all described features.

A sparrow-sized, resident pipit with brown plumage that varies in tones in different parts of its range. All birds have a bi-colored bill with a curve to the tip of the upper bill. The breast is streaked and the upperparts have variable amounts of streaking. Juveniles show distinct and dark mottling on the upperparts. It is common in open habitats such as wetlands, farms, fields, and even large parks. Very similar to Blyth’s and Richard’s Pipits, but relatively compact and has a more distinct eyebrow, fainter or no streaking on the back of the neck, a larger head, and a shorter tail than either Blyth’s or Richard’s. Calls include short “tsip” and “tissip” notes.