Floride 2011 (busard d'amérique)

Magnifique série ! Bravo !

Belle buse et belle photo bravo Gabriel0001

Belle photos..Bravo gabriel

belle capture!

Ti-L@in a écrit:

Belle buse et belle photo bravo Gabriel0001

C'est plutôt un Busard St-Martin juvénile Ti-Lain.

Jo

JoBine a écrit:

Ti-L@in a écrit:

Belle buse et belle photo bravo Gabriel0001

C'est plutôt un Busard St-Martin juvénile Ti-Lain.

Jo

ce commentaire m'intrigue depuis le début.... selon mes recherches, le busard saint-martin (Circus cyaneus / Hen Harrier) est la sous-espèce présente dans le vieux monde alors que le busard d'Amérique (Circus hudsonius / Northern Harrier) est celle du nouveau-monde, comme son nom le suggère.... voici des extraits du Birds of North America de Cornell:

"C . c. cyaneus (Linnaeus, 1766). Includes Falco griseus Gmelin, 1788; C. gallinarius Savigny, 1809; Pygargus dispar Koch, 1816; C. aegithus Leach, 1816; F. strigiceps Nilsson, 1817; C. pygargus (Naumann, 1822); Accipiter variabilis Pallas, 1827; C. nigripennis Brehm, 1855; C. pallens Brehm, 1855; C. c. vulgaris Brehm, 1866; and C. c. taisiae Buturlin, 1908. Often called the Hen Harrier in the Old World (especially the United Kingdom). Largely resident across the Palearctic, from Ireland and the United Kingdom east across Russia [type locality = vic. London, U.K.]; in winter, some move south during periods of snow (Cramp and Simmons 1980). Smaller (flattened wing: male <340 mm; female <384 mm; Scharf and Hamerstrom 1975); adult male is medium gray dorsally, largely lacks ventral bars, and has dark gray tail bars; adult female is grayish brown overall."

"C. c. hudsonius (Linnaeus, 1766). Includes C. uliginosus (Gmelin, 1788); C. variegatus (Latham, 1790); C. europogistus (Daudin, 1800); Buteo spadiceus Vieillot, 1807; C. c. americanus Swainson and Richardson, 1832; and Accipiter hawaii Dole, 1878. Breeds from w. Alaska across the Yukon and nw. Northwest Territories east across n. Manitoba to s. Labrador and Newfoundland and south, coastally, to nw. Baja California and the s. Great Basin east across n. Oklahoma and s. Illinois to the Chesapeake Bay [type locality = Hudson Bay]; winters from southern portion of breeding range (largely south of Canada) south through Middle America to Colombia and Venezuela; vagrants have reached w. Europe. Similar to C. c. cyaneus, but larger (flattened wing: male > 334 mm, female > 378 mm); the adult male is darker gray dorsally, is barred ventrally, and has blackish tail bars; the adult female is browner overall (Nieboer 1973, Scharf and Hamerstrom 1975), and the juvenile is less streaked, with the ventrum more russet"

gabriel0001 a écrit:

JoBine a écrit:

Ti-L@in a écrit:

Belle buse et belle photo bravo Gabriel0001

C'est plutôt un Busard St-Martin juvénile Ti-Lain.

Jo

ce commentaire m'intrigue depuis le début.... selon mes recherches, le busard saint-martin (Circus cyaneus / Hen Harrier) est la sous-espèce présente dans le vieux monde alors que le busard d'Amérique (Circus hudsonius / Northern Harrier) est celle du nouveau-monde, comme son nom le suggère.... voici des extraits du Birds of North America de Cornell:

"C . c. cyaneus (Linnaeus, 1766). Includes Falco griseus Gmelin, 1788; C. gallinarius Savigny, 1809; Pygargus dispar Koch, 1816; C. aegithus Leach, 1816; F. strigiceps Nilsson, 1817; C. pygargus (Naumann, 1822); Accipiter variabilis Pallas, 1827; C. nigripennis Brehm, 1855; C. pallens Brehm, 1855; C. c. vulgaris Brehm, 1866; and C. c. taisiae Buturlin, 1908. Often called the Hen Harrier in the Old World (especially the United Kingdom). Largely resident across the Palearctic, from Ireland and the United Kingdom east across Russia [type locality = vic. London, U.K.]; in winter, some move south during periods of snow (Cramp and Simmons 1980). Smaller (flattened wing: male <340 mm; female <384 mm; Scharf and Hamerstrom 1975); adult male is medium gray dorsally, largely lacks ventral bars, and has dark gray tail bars; adult female is grayish brown overall."

"C. c. hudsonius (Linnaeus, 1766). Includes C. uliginosus (Gmelin, 1788); C. variegatus (Latham, 1790); C. europogistus (Daudin, 1800); Buteo spadiceus Vieillot, 1807; C. c. americanus Swainson and Richardson, 1832; and Accipiter hawaii Dole, 1878. Breeds from w. Alaska across the Yukon and nw. Northwest Territories east across n. Manitoba to s. Labrador and Newfoundland and south, coastally, to nw. Baja California and the s. Great Basin east across n. Oklahoma and s. Illinois to the Chesapeake Bay [type locality = Hudson Bay]; winters from southern portion of breeding range (largely south of Canada) south through Middle America to Colombia and Venezuela; vagrants have reached w. Europe. Similar to C. c. cyaneus, but larger (flattened wing: male > 334 mm, female > 378 mm); the adult male is darker gray dorsally, is barred ventrally, and has blackish tail bars; the adult female is browner overall (Nieboer 1973, Scharf and Hamerstrom 1975), and the juvenile is less streaked, with the ventrum more russet"

cela m'intrigue aussi au moins ici nous voyons des "Circus" avec cette face distinque moi je le nomme Northern Harrier/Busard Saint Martin bizarre, peut être seulement un erreur de traduction

Belle série Gabriel

une belle série Gabriel!