Home » Falconidae: Falconinae, Polyborinae, Laughing Falcon, Caracara, Red-Throated Caracara, Forest Falcon, Black Caracara, Spot-Winged Falconet by Books LLC
Falconidae: Falconinae, Polyborinae, Laughing Falcon, Caracara, Red-Throated Caracara, Forest Falcon, Black Caracara, Spot-Winged Falconet Books LLC

Falconidae: Falconinae, Polyborinae, Laughing Falcon, Caracara, Red-Throated Caracara, Forest Falcon, Black Caracara, Spot-Winged Falconet

Books LLC

Published June 9th 2010
ISBN : 9781157829690
Paperback
36 pages
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Purchase includes free access to book updates online and a free trial membership in the publishers book club where you can select from more than a million books without charge. Excerpt: The Laughing Falcon, Herpetotheres cachinnans, also called theMorePurchase includes free access to book updates online and a free trial membership in the publishers book club where you can select from more than a million books without charge. Excerpt: The Laughing Falcon, Herpetotheres cachinnans, also called the Snake Hawk (erroneously, since it is not a hawk), is a medium-sized bird of prey in the falcon family (Falconidae), the only member of the genus Herpetotheres. This Neotropical species is a specialist snake-eater. Its common and scientific names both refer to its distinctive voice. Its English name comes from its loud voice, as does the specific name cachinnans, Latin for laughing aloud or laughing immoderately. The generic name Herpetotheres refers to its preferred food- it is Latinized Ancient Greek, derived from erpeton (, reptile) + therizein (, to mow down). Its relationships with other members of the Falconidae are unclear. Traditionally it has been placed in the subfamily Polyborinae with the caracaras and forest falcons, but the American Ornithologists Unions North American Check-list Committee now places it in the same subfamily as the true falcons, while the South American Check-list Committee places it with the forest falcons but not the caracaras, and it has also been considered a subfamily of its own. Painting by Andrew Jackson GraysonThe Laughing Falcon is 46 to 56 cm (18 to 22 in) long and has a wingspan of 79 to 94 cm (31 to 37 in). As usual among birds of prey, the females are bigger, weighing 600 to 800 g compared to the males 410 to 680 g. Adults have a pale buff head, changeable between a more brownish and an almost white hue according to feather wear and individual variation. The broad black face mask stretches across the neck as a narrow collar, bordered with white. On the crown, the feather shafts are dark, producing a somewhat streaked effect. The upper wings and back are blackish brown. The uppertail coverts are whitish buff again, and the rect... More: http://booksllc.net/?id=1520260