{"id":10403,"date":"2019-03-17T11:00:19","date_gmt":"2019-03-17T10:00:19","guid":{"rendered":"http:\/\/birds-in-flight.net\/?p=10403"},"modified":"2020-09-11T20:49:21","modified_gmt":"2020-09-11T19:49:21","slug":"white-rumped-swift-apus-caffer","status":"publish","type":"post","link":"https:\/\/birds-in-flight.net\/?p=10403","title":{"rendered":"White-rumped Swift
Apus caffer<\/em>"},"content":{"rendered":"

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

– small Swift, smaller than Common Swift<\/a>
\n– African species with very restricted breeding range in SW WP
\n– Northern populations migratory, vagrant to most of Europe<\/p>\n

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

\"\"<\/a>
\nWhite-rumped Swift Apus caffer<\/em><\/strong>
\nBIF2841, 09\/12\/2018, NP Tsavo West, Kenya, Roland Neumann
\n– very dark swift, most of the body black
\n– well defined, fairly large white throat patch<\/p>\n

\"\"<\/a>
\nWhite-rumped Swift Apus caffer<\/em><\/strong>
\nBIF2842, 09\/12\/2018, NP Tsavo West, Kenya, Roland Neumann
\n– back and upperwing coverts glossy black (dull dark brown in Pacific Swift<\/a>)
\n– white rump restricted to the back (extending to the flanks in Little Swift<\/a> and Pacific Swift<\/a>)<\/p>\n

\"\"<\/a>
\nWhite-rumped Swift Apus caffer<\/em><\/strong>
\nBIF2844, 09\/12\/2018, NP Tsavo West, Kenya, Roland Neumann
\n– secondaries with whitish trailing edge (lacking in Pacific Swift<\/a>)<\/p>\n

\"\"<\/a>
\nWhite-rumped Swift Apus caffer<\/em><\/strong>
\nBIF2843, 08\/12\/2018, NP Tsavo West, Kenya, Roland Neumann
\n– from this angle white rump hardly visible
\n– underside of the body uni-coloured dark (scaly with pale fringes in Pacific Swift<\/a>)<\/p>\n

\"\"<\/a>
\nWhite-rumped Swift Apus caffer<\/em><\/strong>
\nBIF2845, 09\/12\/2018, NP Tsavo West, Kenya, Roland Neumann
\n– when completely fanned tail appears straight cut -> Little Swift<\/a><\/p>\n

\"\"<\/a>
\nWhite-rumped Swift Apus caffer<\/em><\/strong>
\nBIF2846, 08\/12\/2018, NP Tsavo West, Kenya, Roland Neumann
\n– from below the large, well defined white throat patch stands out
\n– deeper forked tail than Common Swift<\/a><\/p>\n

\"\"<\/a>
\nWhite-rumped Swift Apus caffer<\/em><\/strong>
\nBIF2847, 10\/12\/2018, NP Tsavo West, Kenya, Roland Neumann
\n– when the tail is completely folded, the rear end appears very elongated<\/p>\n

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

– dry, screechy series of calls
\n– resembles Pallid Swift<\/a> or Common Swift<\/a>
\n– calls in flight not yet sound recorded<\/em><\/p>\n

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

Pacific Swift<\/a> (v)
\nCommon Swift<\/a> (v) (a)
\nPallid Swift<\/a> (v) (a)
\nCommon House Martin<\/a> (v)
\nLittle Swift<\/a> (v)<\/p>\n

#nearpasserine<\/p>\n

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

>> GENERAL >>>>> – small Swift, smaller than Common Swift – African species with very restricted breeding range in SW WP – Northern populations migratory, vagrant to most of Europe >> VISUAL ID >>>>> White-rumped Swift Apus caffer BIF2841, 09\/12\/2018, NP Tsavo West, Kenya, Roland Neumann – very dark swift, most of the body black … Continue reading White-rumped Swift
Apus caffer<\/em><\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":10396,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[354],"class_list":["post-10403","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-apodidae","tag-white-rumped-swift-apus-caffer"],"_links":{"self":[{"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/posts\/10403","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=10403"}],"version-history":[{"count":6,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/posts\/10403\/revisions"}],"predecessor-version":[{"id":11267,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/posts\/10403\/revisions\/11267"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/media\/10396"}],"wp:attachment":[{"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10403"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10403"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10403"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}