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White-necked Hawk - Buteogallus lacernulatus
#1
White-necked Hawk - Buteogallus lacernulatus

[Image: Gavi%C3%A3o-pombo-pequeno_no_Parque_Esta...Brasil.jpg]

Scientific classification   
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Accipitriformes
Family: Accipitridae
Genus: Buteogallus
Species: B. Lacernulatus

Description: It has the head and lower parts of the white-pure body, in flight it can be mistaken for pigeons, the back is anecdotal. The wings have a black design on the ventral side, being also black on the dorsal side. Short white tail, with narrow base and black anteapical band. Due to the pure white color the species stands out at a distance. It has 43 to 52 cm long, 96 cm wingspan, 295mm wing, 157mm tail, 23mm nozzle and 85mm tarsus.

Distribution and habitat: It occurs in the Atlantic Forest of Eastern Brazil to Santa Catarina. Also in Alagoas, Paraíba, Bahia, Rio de Janeiro, São Paulo, Paraná, Santa Catarina, Minas Gerais and Espírito Santo. In Paraná it is considered a rare species with very few records, all of them in the Atlantic forest, where it seems to prefer the primitive regions.

[Image: Leucopternis_lacernulata_distribution_map.png]

Diet: It feeds on spiders, small snakes, rodents, small mammals, lizards, insects, birds and snot. Occasionally it attacks coaties, tamanduas and monkeys, but they are not depredated.

[Image: Amadonastur_%28Leucopternis%29_lacernula...d_Hawk.JPG]
[-] The following 1 user Likes Shenzi's post:
  • Claudiu Constantin Nicolaescu
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#2
Here we report a case of predation on Bothrops jararaca in Parque Estadual da Ilha Grande (23.1781°S, 44.1860°W, WGS 84; 23 m elev.), an island of Atlantic forest southeast of Rio de Janeiro, Brazil. On 29 September 2014, at 0900 h, LMV observed a Buteogallus lacernulatus (White-necked Hawk) hunting in the litter of secondary forest. The hawk then flew up with a snake in its talons and perched on a branch ca. 3 m high above the ground 
(Fig. 1). The hawk held the snake by its neck and after ca. 5 min. flew away with the snake in its talons. The snake was identified as B. jararaca by the spot coloration pattern typical of the species (Sazima 1988. Mem. Inst. Butantan 50:83–89). Considering that the tarsus of B. lacernulatus is ca. 80 mm in length (M.A.S. Alves, unpubl. data), we estimate that the snake was an adult of at least 60 cm in total length.

[Image: Rd11XOR.png]
[-] The following 1 user Likes Shenzi's post:
  • Claudiu Constantin Nicolaescu
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