sinaloa crow Corvus sinaloae

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.