Black-throated Blue Warbler (Setophaga caerulescens) flight is fast, slightly undulating, and direct with rapid wing beats—a typical warbler flight.
The male and female Black-throated Blue Warblers look so dissimilar that...
Blood Falls a natural phenomenon, a liquid outflow at the snout of Taylor Glacier in East Antarctica.
Numerous glaciers have icy outflows, but few are...