Live Pet Birds
A travelling scientist is shown demonstrating the formation of a vacuum by withdrawing air from a flask containing a white cockatoo, although common birds like sparrows would usually have been used. Many birds rest on one leg, whereas some may pull up their legs into their feathers, especially in chilly climate. That is truly fairly normal behavior, though it may be heartbreaking to the folks whom the bird shuns, especially if the bird was purported to be a certain person’s bird; for example, a wife brings a bird dwelling to be her companion, however the feathered traitor likes the husband instead.
177 This physiological adaptation shows in practically 100 different species, together with owlet-nightjars , nightjars , and woodswallows One species, the frequent poorwill , even enters a state of hibernation 178 Birds should not have sweat glands, however they may cool themselves by moving to shade, standing in … Read the rest