Western Bluebill

Plain brownish warbler, without any striking features—in itself a field mark. Note hint of paler eyering, diffuse gray patch on side of neck, and relatively stubby bill for a warbler. Found in a wide variety of wooded and shrubby habitats, where it is often rather sluggish and easily overlooked. Pleasant, rich warbling song much like a Blackcap song, but tends to be more even-paced and less emphatic. Gives dry “chekchek” calls, often in series, similar to those of Blackcap.

Huge albatross of the Southern Ocean; the southernmost breeder of the Wandering Albatross complex (including Snowy, Tristan, Antipodean, and Amsterdam albatrosses). Main colonies on South Georgia in the South Atlantic, and various islands in the southern Indian Ocean, but ranges extensively at sea. Plumage highly variable, starting chocolate-brown with a white face and gradually becoming whiter over many years. Younger birds separated from Southern Royal Albatross by darker tail, brown markings on head and back, and lack of black “lips” on cutting edge of bill. Older birds more difficult to separate; focus on more coarsely marked upperwings, often with conspicuous white patch in center of wing, and lack of black “lips”. Often shows orange stain on cheek, never shown by Southern Royal. Identification from other Wandering-type Albatross, especially “Gibson’s” Antipodean and Tristan, extremely difficult and often presumed by range. Adult male Snowy is the whitest of any Wandering, but intermediate ages often best left unidentified.

Small glossy crow, common in northwest Mexico; endemic. Occurs in towns, villages, rubbish dumps, farmland, and semiopen areas with hedges and taller trees; often near water. Roosts locally in mangroves (at times in thousands). Social and usually in flocks, at times of hundreds. Most likely to be confused with male Great-tailed Grackle, which has pale eyes and longer and keel-shaped tail (shed in late-summer molt). Calls are high, nasal caws.