All I See is The Bird’s Silhouette, What Should I Do Now?

What do you do when all you have to work with is the silhouette of a bird?

No colors, no sounds, no markings.

Master birders know that by learning bird behavior, combined with size and shape, you’ll tap in to one of the best ways to help distinguish one species from another.

Using behavior, size and shape as your clues, let me know which bird I was describing today?