{"id":6341,"date":"2017-05-21T20:05:26","date_gmt":"2017-05-21T19:05:26","guid":{"rendered":"http:\/\/birds-in-flight.net\/?p=6341"},"modified":"2020-01-31T16:26:49","modified_gmt":"2020-01-31T15:26:49","slug":"rough-legged-buzzard-buteo-lagopus","status":"publish","type":"post","link":"https:\/\/birds-in-flight.net\/?p=6341","title":{"rendered":"Rough-legged Buzzard
Buteo lagopus<\/em>"},"content":{"rendered":"

>> GENERAL >>>>><\/strong><\/p>\n

– medium-sized Raptor, marginally larger than Common Buzzard <\/a>
\n– diurnal migrant, prefers over-land routes
\n– migrates singly or few individuals together<\/p>\n

>> VISUAL ID >>>>><\/strong><\/p>\n

\"\"<\/a>
\nRough-legged Buzzard Buteo l. lagopus<\/em>, 1CY<\/strong>
\nBIF1342, 30\/10\/2011, Havelland, Germany, Mathias Putze
\nunusual dark 1CY individual, aged by tail pattern and light iris
\n– very extensive brown belly
\n– comparatively strong marked underwing coverts<\/p>\n

\"\"<\/a>
\nRough-legged Buzzard Buteo l. lagopus<\/em>, 1CY<\/strong>
\nBIF1344, 30\/10\/2011, Havelland, Germany, Mathias Putze
\nsame as BIF1342
\n– head and breast unusually strong patterned dark brown <\/p>\n

\"\"<\/a>
\nRough-legged Buzzard Buteo l. lagopus<\/em>, 2CY<\/strong>
\nBIF1346, 30\/04\/2008, R\u00fcgen, Germany, Mathias Putze
\nmost typical 2CY (JUV plumage)
\n– contrasting dark-brown belly, often light thighs
\n– poorly marked underwing coverts, wing with only narrow dusky trailing edge
\n– barring of secondaries is confined to the distal part -> 1CY Long-legged Buzzard<\/a>
\n– sparsely marked tail <\/p>\n

\"\"<\/a>
\nRough-legged Buzzard Buteo l. lagopus<\/em>, 2CY<\/strong>
\nBIF1347, 30\/04\/2008, R\u00fcgen, Germany, Mathias Putze
\n– fairly slender wings and long tail in comparison to AD
\n– individual with comparatively dark body<\/p>\n

\"\"<\/a>
\nRough-legged Buzzard Buteo l. lagopus<\/em>, 2CY<\/strong>
\nBIF1348, 30\/04\/2008, R\u00fcgen, Germany, Mathias Putze
\n– often the best pointer: contrast between solid dark-brown belly-patch and paler breast and head<\/p>\n

\"\"<\/a>
\nRough-legged Buzzard Buteo l. lagopus<\/em>, AD F<\/strong>
\nBIF1342, 05\/03\/2012, Havelland, Germany, Mathias Putze
\n– diagnostic dark brown carpal patch contrasting to paler underwing coverts (all plumages, contrast least distinct in AD M) -> Common Buzzard<\/a>
\n– underwing coverts in F lighter and less patterned than in M<\/p>\n

\"\"<\/a>
\nRough-legged Buzzard Buteo l. lagopus<\/em>, AD F<\/strong>
\nBIF1343, 05\/03\/2012, Havelland, Germany, Mathias Putze
\nsame as BIF1342
\n– note F tail pattern: one distinct broad black subterminal band
\n– rather uniform brown belly
\n– dark trailing edge to the wing not as broad as in older AD<\/p>\n

\"\"<\/a>
\nRough-legged Buzzard Buteo l. lagopus<\/em>, 2CY<\/strong>
\nBIF1349, 20\/05\/2008, R\u00fcgen, Germany, Mathias Putze
\n– against the light primaries more translucent than secondaries<\/p>\n

\"\"<\/a>
\nRough-legged Buzzard Buteo l. lagopus<\/em>, 2CY<\/strong>
\nBIF1350, 30\/04\/2008, R\u00fcgen, Germany, Mathias Putze
\n– note different proportion of this circling bird in comparison to BIF1349 in straight flight<\/p>\n

\"\"<\/a>
\nRough-legged Buzzard Buteo l. lagopus<\/em>, 2CY<\/strong>
\nBIF1430, 17\/01\/2015, Shirvan National Park, Azerbaijan, Michael Hei\u00df
\n– fanned, pale tail with only diffusely bars of hovering birds is diagnostic in JUV plumage<\/p>\n

\"\"<\/a>
\nRough-legged Buzzard Buteo l. lagopus<\/em>, 2CY<\/strong>
\nBIF1430, 17\/01\/2015, Shirvan National Park, Azerbaijan, Michael Hei\u00df
\nsame as BIF1430
\n– typical JUV proportion with very long tail and slender wings
\n– resembles JUV Long-legged Buzzard<\/a> but note completely brown belly and tail pattern<\/p>\n

>> ACOUSTIC ID >>>>><\/strong><\/p>\n

– usually nonvocal during migration<\/p>\n

>> COMPARISON SPECIES >>>>><\/strong><\/p>\n

European Honey Buzzard<\/a> (v)
\nCrested Honey Buzzard<\/a> (v)
\nCommon Buzzard<\/a> (v)
\nLong-legged Buzzard<\/a> (v)
\nUpland Buzzard (v)
\nBooted Eagle<\/a> (v)<\/p>\n

#raptor #birdofprey #birdsofprey #soaringbird<\/p>\n

#ornithology #birdmigration #birdID #birdguide #birding #birdwatching #birdsound #westernpalearctic #europe #vismig #flightcalls #middleeast #northernafrica #workinprogress<\/p>\n","protected":false},"excerpt":{"rendered":"

>> GENERAL >>>>> – medium-sized Raptor, marginally larger than Common Buzzard – diurnal migrant, prefers over-land routes – migrates singly or few individuals together >> VISUAL ID >>>>> Rough-legged Buzzard Buteo l. lagopus, 1CY BIF1342, 30\/10\/2011, Havelland, Germany, Mathias Putze unusual dark 1CY individual, aged by tail pattern and light iris – very extensive brown … Continue reading Rough-legged Buzzard
Buteo lagopus<\/em><\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":6404,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[202],"tags":[204],"class_list":["post-6341","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-acciptridae","tag-rough-legged-buzzard-buteo-lagopus"],"_links":{"self":[{"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/posts\/6341","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6341"}],"version-history":[{"count":21,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/posts\/6341\/revisions"}],"predecessor-version":[{"id":11605,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/posts\/6341\/revisions\/11605"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/media\/6404"}],"wp:attachment":[{"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6341"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6341"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6341"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}