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They are also long-lived: a Manx shearwater breeding on Copeland Island, Northern Ireland, was (as of 2003/2004) the oldest known wild bird in the world; ringed as an adult (when at least 5 years old) in July 1953, it was retrapped in July 2003, at least 55 years old (also now exceeded, by a Laysan albatross). Manx shearwaters migrate over ...
Zino's petrel (Pterodroma madeira) or the freira, is a species of small seabird in the gadfly petrel genus, endemic to the island of Madeira.This long-winged petrel has a grey back and wings, with a dark "W" marking across the wings, and a grey upper tail.
The taxonomic treatment [3] (designation and sequence of orders, families and species) and nomenclature (common and scientific names) used in the accompanying bird lists adheres to the conventions of the AOS's (2019) Check-list of North American Birds, the recognized scientific authority on the taxonomy and nomenclature of North America birds.
Calonectris is a genus of seabirds.The genus name comes from Ancient Greek kalos, "good" and nectris, "swimmer".. The genus comprises four large shearwaters.There are two other shearwater genera, Puffinus, which comprises 21 small to medium-sized shearwaters, and Ardenna with 7 larger species.
Puffinus is a genus of seabirds in the order Procellariiformes that contains about 20 small to medium-sized shearwaters.Two other shearwater genera are named: Calonectris, which comprises three or four large shearwaters, and Ardenna with another seven species (formerly often included within Puffinus).
The wings are stiff and cambered, with thickened, streamlined leading edges. Albatrosses travel long distances with two techniques used by many long-winged seabirds – dynamic soaring and slope soaring. Dynamic soaring involves repeatedly rising into wind and descending downwind, thus gaining energy from the vertical wind gradient. The only ...
Grey-faced petrels are large birds, with a body length of 42–45 cm and weighing on average 550 grams (19 oz). [4] They have a dark black-brown colouration, similar to that of the black-footed albatross, with a black bill and pale grey to buff feathers at the base of the bill and throat.
Other vultures can be almost as large, with the Himalayan vulture (Gyps himalayensis) reaching lengths of up to 1.5 m (4.9 ft) due to its long neck. [52] The largest living member of this order, in terms of length and height, is the secretarybird (Sagittarius serpentarius) of sub-Saharan Africa. It measures 0.9–1.3 m (3.0–4.3 ft) in height ...