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Northern mockingbird. The northern mockingbird (Mimus polyglottos) is a mockingbird commonly found in North America, of the family Mimidae. The species is also found in some parts of the Caribbean, as well as on the Hawaiian Islands. It is typically a permanent resident across much of its range, but northern mockingbirds may move farther south ...
Other factors, including humidity and air temperature, can also influence flight altitudes of birds in ways that influence risk of collision. [20] Some of the highest reports of bird fatalities from window collisions have occurred when migrating passerines began their journey in good weather conditions, but hit a cold front which forced them to ...
Mockingbirds are a group of New World passerine birds from the family Mimidae. They are best known for the habit of some species mimicking the songs of other birds and the sounds of insects and amphibians, [1] often loudly and in rapid succession and for being extremely territorial when raising hatchlings. Studies have shown the ability of some ...
Some birds left 'out of sync'. Warming triggers some bird species to change their migration patterns and arrive in their spring breeding grounds days or weeks earlier than they used to. Other ...
Adult tropical mockingbirds are 23 to 25.5 cm (9.1 to 10.0 in) long. The mean weights of various subspecies vary greatly. Adults of the nominate subspecies are gray on the head and upper parts and have a whitish supercilium and a dark stripe through the eye. The underparts are off-white and the wings are blackish with two white wing bars and ...
The Louisville Audubon Society is calling on Louisville residents and businesses to "minimize all non-essential lights from 11 p.m. to 6 a.m. during peak spring and fall bird migration — April ...
Bird migration perils. Migrating birds face many perils as they travel between breeding and wintering grounds each year. Migration is a dangerous part of a bird 's life cycle, with many trade-offs; birds receive benefits from wintering and breeding in better quality habitats, at the price of higher predation risks and greater energy expenditure.
Description. The long-tailed mockingbird is 27 to 29.5 cm (10.6 to 11.6 in) long and weighs 54 to 79 g (1.9 to 2.8 oz) with an average of 66.6 g (2.35 oz). Males are slightly larger than females. Adults of the nominate subspecies have a broad white supercilium and a black stripe through the eye that touches a black patch on the white cheek.