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Birds strike glass because reflective or transparent glass is often invisible to them. [1] It is estimated that between 100 million and 1 billion birds are killed by collisions in the United States annually, [2] and an estimated 16 to 42 million birds are likewise killed each year in Canada. [3]
The adult glasswing butterfly can be identified by its transparent wings with opaque, dark brown borders tinted with red or orange. Their bodies are a dark brown color. The butterflies are 2.8 to 3.0 centimetres (1.1 to 1.2 in) long and have a wingspan of 5.6 to 6.1 centimetres (2.2 to 2.4 in).
The lyrebirds are large passerine birds, amongst the largest in the order. They are ground living birds with strong legs and feet and short rounded wings. They are poor fliers and rarely fly except for periods of downhill gliding. [7] The superb lyrebird is the larger of the two species. Lyrebirds measure 31 to 39 inches in length, including ...
Swifts are small birds which spend the majority of their lives flying. These birds have very short legs and never settle voluntarily on the ground, perching instead only on vertical surfaces. Many swifts have long swept-back wings which resemble a crescent or boomerang. Glossy swiftlet, Collocalia esculenta; Satin swiftlet, Collocalia uropygialis
[14] [19] [20] The mean wingspan is around 283 cm (9 ft 3 in) and the wings have the largest surface area of any extant bird. [20] It has a maximum wingspan of 3.3 m (10 ft 10 in). [21] Among living bird species, only the great albatrosses and the two largest species of pelican exceed the Andean condor in average and maximal wingspan. [20] [22]
The female is an olive brown bird with yellow or golden around the stomach. The flame bowerbird is distributed in and endemic to rainforests of southern New Guinea . The male flame bowerbird also has a courtship display along with his bower, twisting his tails and his wings to the side, and then shaking his head quickly.
Artist's impression of a peryton. The peryton is a mythological hybrid animal combining the physical features of a stag and a bird.The peryton was invented by Jorge Luis Borges in his 1957 Book of Imaginary Beings, using the fictional device of a supposedly long-lost medieval manuscript.
The elegant trogon (Trogon elegans), previously known as the coppery-tailed trogon, is a near passerine bird in the trogon family native to Central America. [3] The etymology of the word trogon comes from the Greek word trÅgein, meaning "to gnaw", [4] which describes how this species prepares its nests in trees.