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A wing-clipped Meyer's parrot perching on a drawer handle. While clipping is endorsed by some avian veterinarians, others oppose it. [7]By restricting flight, wing clipping may help prevent indoor birds from risking injury from ceiling fans or flying into large windows, but no evidence shows that clipped birds are safer than full-winged ones, only that clipped birds are subject to different ...
African fish eagle in Lake Zway, Ethiopia. The African fish eagle is a large bird. The female, at 3.2–3.6 kg (7.1–7.9 lb) is larger than the male, at 2.0–2.5 kg (4.4–5.5 lb). This is typical sexual dimorphism in birds of prey. Males usually have wingspans around 2.0 m (6.6 ft), while females have wingspans of 2.4 m (7.9 ft).
Tool use by non-humans is a phenomenon in which a non-human animal uses any kind of tool in order to achieve a goal such as acquiring food and water, grooming, combat, defence, communication, recreation or construction. Originally thought to be a skill possessed only by humans, some tool use requires a sophisticated level of cognition.
5.1 Fish. 5.2 Mammals and birds. ... Like most marine mammals, orcas have a layer of insulating blubber ranging from 7.6 to 10 cm (3.0 to 3.9 in) ... In one video, an ...
The 13-day-signs of this trecena, starting with 1 Earthquake, 2 Flint/Knife, 3 Rain, etc., are shown on the bottom row and the right column Aztec calendar stone ; 1502–1521; basalt ; diameter: 358 cm (141 in.); thick: 98 cm (39 in.); discovered on 17 December 1790 during repairs on the Mexico City Cathedral ; National Museum of Anthropology ...
The great frigatebird (Fregata minor) is a large seabird in the frigatebird family.There are major nesting populations in the tropical Pacific Ocean, such as Hawaii and the Galápagos Islands; in the Indian Ocean, colonies can be found in the Seychelles (on Aldabra and Aride Islands) and Mauritius, and there is a tiny population in the South Atlantic, mostly on and around St. Helena and ...
There is an intricate link between various fishing techniques and knowledge about the fish and their behaviour including migration, foraging and habitat. The effective use of fishing techniques often depends on this additional knowledge. [1] Which techniques are appropriate is dictated mainly by the target species and by its habitat. [2]
The magnificent frigatebird is the largest species of frigatebird. It measures 89–114 cm (2 ft 11 in – 3 ft 9 in) in length, has a wingspan of 2.17–2.44 m (7 ft 1 in – 8 ft 0 in) and weighs 1.1–1.59 kilograms (2 lb 7 oz – 3 lb 8 oz). [16] Males are all-black with a scarlet throat pouch that is inflated like a balloon in the breeding ...