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Argentavis wingspan estimates varied widely depending on the method used for scaling, i.e. regression analyses or comparisons with the California condor. At one time, wingspans have been published for the species up to 7.5 to 8 m (24 ft 7 in to 26 ft 3 in) but more recent estimates put the wingspan more likely in the range of 5.09 to 6.5 m (16 ...
Passenger pigeon. The passenger pigeon or wild pigeon ( Ectopistes migratorius) is an extinct species of pigeon that was endemic to North America. Its common name is derived from the French word passager, meaning "passing by", due to the migratory habits of the species. The scientific name also refers to its migratory characteristics.
The great auk (Pinguinus impennis) is a species of flightless alcid that became extinct in the mid-19th century. It was the only modern species in the genus Pinguinus.It is not closely related to the Southern Hemisphere birds now known as penguins, which were discovered later by Europeans and so named by sailors because of their physical resemblance to the great auk, which were called penguins.
Pacific Coast Avifauna No. 2--A List of Land Birds of Santa Cruz County, California (PDF) (Report). Santa Clara, CA: Cooper Ornithological Club of California. Retrieved 2011-12-19. ^ This seasonal checklist was developed from records compiled by the Santa Cruz Bird Club. Updated most recently September 30, 2002.
Palaeeudyptinae, the giant penguins, is a paraphyletic subfamily of prehistoric penguins. It includes several genera of medium-sized to very large species, such as Icadyptes salasi, Palaeeudyptes marplesi, Anthropornis nordenskjoeldi, and Pachydyptes ponderosus. Icadyptes reached 1.5 m (4 ft 11 in) in height, while members of Palaeeudyptes and ...
Plotopteridae [1] is an extinct family of flightless seabirds with uncertain placement, generally considered as member of order Suliformes. [2] They exhibited remarkable convergent evolution with the penguins, particularly with the now extinct giant penguins. [3] [4] That they lived in the North Pacific, the other side of the world from the ...
June 24, 2024 at 4:00 PM. Getty Images. Authorities — concerned about an increasing number of mountain lion encounters including one earlier this year that killed a man and severely injured his ...
The Dark Watchers are described as tall, sometimes giant-sized featureless dark silhouettes often adorned with brimmed hats or walking sticks. [1] They are most often reported to be seen in the hours around twilight and dawn. They are said to motionlessly watch travelers from the horizon along the Santa Lucia Mountain Range.