ML645046227

观察细节

Counted. 90-110 estimated (100); 11; 1; 8; 1; 4. Moderate altitude. Single-species flock for all but one bird. At a distance (when viewed flying overhead, in light snow/greyish sky): spindly, washed out appearance. Gracile, and slender bodied. Small head and undetectable foot projection. Duck-like flap rate.