Ocommie63 in hnaa_hobb_el_tayur
Baltimore Oriole
The Baltimore oriole (Icterus galbula) is a small icterid blackbird common in eastern North America as a migratory breeding bird. It received its name from the resemblance of the male's colors to those on the coat-of-arms of 17th-century Lord Baltimore. For at least part of the year, Baltimore orioles can be seen in the eastern United States and as far west as Montana. Migrating populations head south during the late summer to early fall and stay in the Southeast U.S., Central America, or South America until April. Their preferred habitat is open deciduous woodlands. Baltimore Orioles eat insects, fruit, and nectar. The proportion of each food varies by season: in summer, while breeding and feeding their young, much of the diet consists of insects, which are rich in the proteins needed for growth. In spring and fall, nectar and ripe fruits compose more of the diet; these sugary foods are readily converted into fat, which supplies energy for migration. Baltimore Orioles eat a wide variety of insects, including beetles, crickets, grasshoppers, moths, and flies, as well as spiders, snails, and other small invertebrates. They eat many pest species, including tent caterpillars, gypsy moth caterpillars, fall webworms, spiny elm caterpillars, and the larvae within plant galls. However, orioles can also damage fruit crops, including raspberries, mulberries, cherries, oranges and bananas, and some fruit growers consider these birds a pest. The pure, liquid, whistling tones of the male Baltimore Oriole are a herald of springtime in eastern North America. His song consists of a short series of paired notes, repeated 2–7 times, lasting 1–2 seconds. The flutelike sound has a full, rich tone. The male sings to establish and defend a breeding territory, so you won’t hear the full song on the wintering grounds. The female Baltimore Oriole also sings. Her shorter songs may be communications with her mate. Occasionally, mated pairs may sing a duet. Both male and female Baltimore Orioles give a staccato chatter during aggressive encounters, such as when trying to drive an intruder out of their nesting area. The chatter call may be heard at any time of day and year. It alerts other orioles nearby and can attract them to help drive away the threat. Both male and female Baltimore Orioles also give a sharp, repetitive chuck as an alarm call. Neighboring orioles of various species respond to each others’ chuck calls. Female Baltimore Orioles give a special, aggressive scream call when defending their nests. During breeding season, mature males sometimes make a flutter-drum sound to each other by beating their wings loudly in flight. Here is a link so you can listen to this bird too. ... read full post