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People interested in learning more about how to attract and care for Purple Martins can receive a free booklet by contacting the Purple Martin Conservation Association by emailing info ...
The purple martin (Progne subis) is a ... Tapes of purple martin song are sold to attract martins to newly established ... Purple Martin Bird Sound at Florida Museum ...
Other Seed Types Birds Like. While sunflower seed appeals to a wide variety of birds, “Some seed types seem to attract specific types of birds,” says Joe Liebezeit, staff scientist and Avian ...
Purple martins are now being spotted in Pennsylvania. The swallows spend the winter months in Brazil and migrate north for spring and summer. Purple martins are making their 7,000 mile trip to ...
It has been speculated that certain birds, including swallows, enter a state of torpidity during harsh winter conditions. Few observations of this decrease in body temperature and metabolic rate have been recorded in violet-green swallows, the first case occurring in 1965 near Death Valley National Monument in Saratoga Springs, California .
The western house martin flies with a wing beat averaging 5.3 beats per second, which is faster than the wing beat of 4.4 beats per second for the barn swallow, [12] but the flight speed of 11 m/s (36 ft/s) is typical for hirundines. [13] The western house martin is a noisy species, especially at its breeding colonies.
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