Scientific name: Spinus tristis ・Length: 4.3 - 5.1 inches ・Weight: 0.4 - 0.7 ounces ・Wingspan: 7.5 - 8.7 inches The American ...

These birds are olive with bright yellow throats and breasts. And their black eye mask is offset by a blurry white line that separates the face from the head ... for the very northern populations ...