króliki-i-zające: American goshawk

Evidence: 100 • authority: 72

The American goshawk (Astur atricapillus) is a species of raptor in the family Accipitridae. It was first described by Alexander Wilson in 1812. The American goshawk was previously considered conspecific with the Eurasian goshawk but was assigned to a separate species in 2023 based on differences in morphology, vocalizations, and genetic divergence. It was formerly placed in the genus Accipiter. It is mainly resident, but birds from colder regions migrate south for the winter. In North America, migratory goshawks are often seen migrating south along mountain ridge tops at nearly any time of the fall depending on latitude.

Evidence: 58 • authority: 80

Rediscovery of the holotype of the American Goshawk, Accipiter gentilis atricapillus (Wilson, 1812), and a commentary about Alexander Wilson's contributions to the Peale Museum

Evidence: 41 • authority: 88

Identifying fossil Myrtaceae leaves: the first described fossils of <i>Syzygium</i> from Australia. Premise of the Study Although leaves of Myrtaceae are easily identified to family level, very few studies have convincingly identified fossil Myrtaceae leaves to living genera. We used a broadly comparative approach with a large data set of extant taxa to confidently assign the mummified remains of myrtaceous leaves from early Miocene sediments at Kiandra (New South Wales, Australia) to a living genus. Methods Fossils were identified using a nearest living relative approach, against a database of 232 extant broadleaf rainforest species of Myrtaceae. Leaf cuticles were prepared from 106 specie…

Evidence: 41 • authority: 80

Wilson's American ornithology with additions including the birds described by Audubon, Bonaparte, Nuttall, &amp; Richardson

Evidence: 41 • authority: 80

First Described Renesting Attempt by an American Bittern

Evidence: 41 • authority: 80

Alexander Wilson: Naturalist and Pioneer