san blas jay Cyanocorax sanblasianus

Handsome blue-and-black jay of tropical forests, woodlands, and gardens endemic to west Mexico. Usually in small groups, which can be noisy and conspicuous or very quiet and easily overlooked; often with Yellow-winged Caciques. Around the town of San Blas (in Nayarit, Mexico), appreciably larger Purplish-backed Jay occurs at southern end of its range (and northern end of San Blas Jay’s range). Purplish-backed is deep purplish blue on back and tail, not strikingly two-toned blue-and-black like San Blas Jay, and has bright yellow legs. Voices also very different. Purplish-backed occurs in mangroves and adjacent woodlands in and around town while San Blas Jay occurs in foothill forest of coffee plantations south of town.