Bird migration takes place two times a year. Generally, it happens in the spring and autumn of the year in the temperate regions. In the tropics, movement happens during the dry and rainy seasons. Food is a driving force. Birds migrate in temperate regions to places with better sources of food. In the tropical regions, the […]
birds
Hummingbird Migration Dates
female Ruby-Throated Hummingbird at Schuylkill Nature Center The hummingbirds should be migrating. Originally published October 2015,dates still apply. I spotted this female Ruby-Throat at the Schuylkill Nature Center in the Roxborough section of Philadelphia last Wednesday. At first I heard a squeaking noise and then I realized it was a hummingbird. She flew right by […]
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Identifying Birds by Color: A Collection of Photo Galleries
People see color before they see anything else. And trying to identify a mystery bird is no exception. Over the years I have posted photo galleries of common birds grouped by color. These photo galleries serve as guides to figuring out what bird you are seeing. And with spring migration starting, high probability of being stumped […]
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Identifying Birds by Color: Blue (A Photo Gallery)
Identifying birds by color can be helpful during the upcoming spring migration and breeding season. Birds go through two molts per year. The first happens in late summer-fall when the brighter breeding plumage is replaced by the drab basic plumage. The birds will wear this basic plumage through the fall, migration, and winter seasons. The […]
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Cavity Nesters: Birds that Use Holes in Trees
Half of all birds species nest in tree cavities. Knowing the speces that do can help with your conservation efforts.
