{"id":6636,"date":"2017-07-25T00:01:29","date_gmt":"2017-07-24T23:01:29","guid":{"rendered":"http:\/\/birds-in-flight.net\/?p=6636"},"modified":"2020-01-31T16:25:12","modified_gmt":"2020-01-31T15:25:12","slug":"booted-eagle-aquila-pennata","status":"publish","type":"post","link":"https:\/\/birds-in-flight.net\/?p=6636","title":{"rendered":"Booted Eagle
Aquila pennata<\/em>"},"content":{"rendered":"

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

– buzzard-sized raptor
\n– diurnal migrant, strictly over land
\n– usually migrates singly
\n– at migration bottlenecks sometimes mixed with other raptors<\/p>\n

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

\"\"<\/a>
\nBooted Eagle Aquila pennata<\/em>, PALE 2CY<\/strong>
\nBIF2762, 03\/05\/2008, Valencia, Spain, Martin Grimm
\n– light morph, unmistakable! Largely white Body and underwing coverts and dusky remiges
\n– contrast between dark secondaries and lighter inner primaries
\n– Aged as 2CY due to uniformly `S\u00b4-shaped trailing edge to the wing and clean rufous hood<\/p>\n

\"\"<\/a>
\nBooted Eagle Aquila pennata<\/em>, PALE 2CY<\/strong>
\nBIF2763, 03\/05\/2008, Valencia, Spain, Martin Grimm
\n– on the upperside contrasting pale uppertail coverts and pale greater coverts band<\/p>\n

\"\"<\/a>
\nBooted Eagle Aquila pennata<\/em>, PALE 2CY<\/strong>
\nBIF2764, 03\/05\/2008, Valencia, Spain, Martin Grimm
\n– the contrast between all dark secondaries and pale inner primaries is distinctive also on upperside<\/p>\n

\"\"<\/a>
\nBooted Eagle Aquila pennata<\/em>, PALE 2CY<\/strong>
\nBIF2765, 03\/05\/2008, Valencia, Spain, Martin Grimm
\n– typical head-on view with slightly hanging ‘hand’<\/p>\n

\"\"<\/a>
\nBooted Eagle Aquila pennata<\/em>, DARK 2CY<\/strong>
\nBIF2766, 19\/06\/2016, Khovsgol, Mongolia, Martin Grimm
\n– usually clearly visable white ‘position lights’ are revealing<\/p>\n

\"\"<\/a>
\nBooted Eagle Aquila pennata<\/em>, IMED 2CY<\/strong>
\nBIF1518, 28\/05\/2011, Mongolia, Mathias Putze
\n– from below white ‘position lights’ often not visable
\n– contrast between dusky secondaries and lighter inner primaries
\n– tail rather short
\n– aged as 2CY by uniform plumage and worn off translucent light trailing edge to the wing<\/p>\n

\"\"<\/a>
\nBooted Eagle Aquila pennata<\/em>, IMED 2CY<\/strong>
\nBIF1517, 28\/05\/2011, Mongolia, Mathias Putze
\n– from this angle difficult to rule out\u00a0Black Kite<\/a> (BIF1303) but note large bill and dark head, barring of secondaries with more contrast<\/p>\n

\"\"<\/a>
\nBooted Eagle Aquila pennata<\/em>, DARK AD<\/strong>
\nBIF1513, 06\/06\/2016, Mongolia, Mathias Putze<\/p>\n

\"\"<\/a>
\nBooted Eagle Aquila pennata<\/em>, DARK AD<\/strong>
\nBIF1514, 06\/06\/2016, Mongolia, Mathias Putze
\n– same as BIF1513, uniform dark-brown underside and underwing slightly contrasting to paler, cream-colored vent
\n– six long ‘fingers’ separate it from any Buteo<\/em> sp. or dark JUV\u00a0European Honey Buzzard<\/a><\/p>\n

\"\"<\/a>
\nBooted Eagle Aquila pennata<\/em>, DARK AD<\/strong>
\nBIF1515, 07\/06\/2016, Mongolia, Mathias Putze
\n– different generations of primaries
\n– rectrices with broad subterminal band, increasingly less patterned from central to outermost tail feather<\/p>\n

\"\"<\/a>
\nBooted Eagle Aquila pennata<\/em>, DARK AD<\/strong>
\nBIF1516, 07\/06\/2016, Mongolia, Mathias Putze
\n– same as BIF1515, contrast between secondaries and primaries barely visible against the bright sky<\/p>\n

\"\"<\/a>
\nBooted Eagle Aquila pennata<\/em>, PALE 2CY<\/strong>
\nBIF1523, 20\/04\/2011, Maylytogay, Kazakstan, Patrick Franke<\/p>\n

\"\"<\/a>
\nBooted Eagle Aquila pennata<\/em>, PALE 2CY<\/strong>
\nBIF1524, 20\/04\/2011, Maylytogay, Kazakstan, Patrick Franke<\/p>\n

\"\"<\/a>
\nBooted Eagle Aquila pennata<\/em>, IMED 2CY<\/strong>
\nBIF1522, 06\/06\/2016, Mongolia, Mathias Putze
\n– aged as 2CY due to uniformly light trailing edge to wing and tail<\/p>\n

\"\"<\/a>
\nBooted Eagle Aquila pennata<\/em>, IMED AD<\/strong>
\nBIF1519, 13\/08\/2011, Besh Barmag, Azerbaijan, Michael Hei\u00df
\n– IMED morph can resemble IMM\u00a0Bonelli’s Eagle<\/a> but note different proportion and missing dark trailing edge to the wing
\n– outer primaries are not barred (2nd and 3rd outermost primaries missing due to regular moult)<\/p>\n

\"\"<\/a>
\nBooted Eagle Aquila pennata<\/em>, IMED AD<\/strong>
\nBIF1520, 14\/08\/2011, Besh Barmag, Azerbaijan, Michael Hei\u00df<\/p>\n

\"\"<\/a>
\nBooted Eagle Aquila pennata<\/em> IMED<\/strong>
\nBIF1521, 14\/06\/2011, Mongolia, Mathias Putze<\/p>\n

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

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

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

Bonelli’s Eagle<\/a> (v)
\nBlack Kite<\/a> (v)
\nBlack-eared Kite<\/a> (v)
\nYellow-billed Kite<\/a> (v)
\nEuropean Honey Buzzard<\/a> (v)
\nWestern Marsh Harrier<\/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 >>>>> – buzzard-sized raptor – diurnal migrant, strictly over land – usually migrates singly – at migration bottlenecks sometimes mixed with other raptors >> VISUAL ID >>>>> Booted Eagle Aquila pennata, PALE 2CY BIF2762, 03\/05\/2008, Valencia, Spain, Martin Grimm – light morph, unmistakable! Largely white Body and underwing coverts and dusky remiges – … Continue reading Booted Eagle
Aquila pennata<\/em><\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":10260,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[202],"tags":[214],"class_list":["post-6636","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-acciptridae","tag-booted-eagle-aquila-pennata"],"_links":{"self":[{"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/posts\/6636","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=6636"}],"version-history":[{"count":28,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/posts\/6636\/revisions"}],"predecessor-version":[{"id":11594,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/posts\/6636\/revisions\/11594"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/media\/10260"}],"wp:attachment":[{"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6636"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6636"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6636"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}