{"id":4135,"date":"2016-10-10T09:37:06","date_gmt":"2016-10-10T08:37:06","guid":{"rendered":"http:\/\/birds-in-flight.net\/?p=4135"},"modified":"2021-08-16T09:39:04","modified_gmt":"2021-08-16T08:39:04","slug":"black-crowned-night-heron-nycticorax-nycticorax","status":"publish","type":"post","link":"https:\/\/birds-in-flight.net\/?p=4135","title":{"rendered":"Black-crowned Night Heron
Nycticorax nycticorax<\/em>"},"content":{"rendered":"

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

– medium-sized heron, considerably smaller and stubbier than Grey Heron<\/a>
\n– nocturnal migrant, diurnal movements take place
\n– migrates singly or in flocks in (loose) formation<\/p>\n

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

\"BIF667_MPU_I8Z8207_100630_bcnheron-1-JUV_hu_kiskunsagi\"<\/a>
\nBlack-crowned Night Heron Nycticorax n. nycticorax<\/em>, 1CY<\/strong>
\nBIF0667, 30\/06\/2010, Kiskuns\u00e1gi, Hungary, Mathias Putze
\n– stout, medium-sized heron with rather short and strong bill
\n– upperside base colour of 1CY is uniform brown
\n– wing coverts and scapulars with white tips
\n– resembles Eurasian Bittern but note unbarred remiges and shorter legs<\/p>\n

\"BIF668_MPU_I8Z8195_100630_bcnheron-1-JUV_hu_kiskunsagi\"<\/a>
\nBlack-crowned Night Heron Nycticorax n. nycticorax<\/em>, 1CY<\/strong>
\nBIF0668, 30\/06\/2010, Kiskuns\u00e1gi, Hungary, Mathias Putze
\n– typical posture in flight with \u201ahanging\u2018 feet and bill tilted downwards
\n– body diffusely streaked
\n– in 1CY bill yellowish, iris yellow<\/p>\n

\"BIF663_MPU_I8Z8141_100630_bcnheron-1-AD_hu_kiskunsagi\"<\/a>
\nBlack-crowned Night Heron Nycticorax n. nycticorax<\/em>, AD<\/strong>
\nBIF0663, 30\/06\/2010, Kiskuns\u00e1gi, Hungary, Mathias Putze
\n– typical posture in flight with slightly down-tilted bill
\n– large orange eye, black bill in full BREED
\n– upperwing plain grey<\/p>\n

\"BIF664_MPU_I8Z8140_100630_bcnheron-1-AD_hu_kiskunsagi\"<\/a>
\nBlack-crowned Night Heron Nycticorax n. nycticorax<\/em>, AD<\/strong>
\nBIF0664, 30\/06\/2010, Kiskuns\u00e1gi, Hungary, Mathias Putze
\n– underwing coverts only slightly contrasting to somewhat darker grey remiges
\n– body lighter grey
\n– only toes protruding the tail<\/p>\n

\"BIF665_MPU_I8Z8904_100630_bcnheron-1-AD_hu_kiskunsagi\"<\/a>
\nBlack-crowned Night Heron Nycticorax n. nycticorax<\/em>, AD<\/strong>
\nBIF0665, 30\/06\/2010, Kiskuns\u00e1gi, Hungary, Mathias Putze
\n– wings held rather stiff
\n– flight with rather shallow wingbeats
\n– black cap and back<\/p>\n

\"BIF666_MPU_I8Z7803_100629_bcnheron-1-AD_hu_kiskunsagi\"<\/a>
\nBlack-crowned Night Heron Nycticorax n. nycticorax<\/em>, AD<\/strong>
\nBIF0666, 29\/06\/2010, Kiskuns\u00e1gi, Hungary, Mathias Putze
\n– bill more decurved than in other herons<\/p>\n

\"\"<\/a>
\nBlack-crowned Night Heron Nycticorax n. nycticorax<\/em>, AD, 1CY<\/strong>
\nBIF2942, 29\/08\/2015, Mallorca, Spain, Martin Grimm
\n– during non-breeding season also AD with yellowish lower mandible<\/p>\n

\"BIF669_MPU_I8Z8176__100630_bcnheron-2-AD-1-2CY_hu_kiskunsagi\"<\/a>
\nBlack-crowned Night Heron Nycticorax n. nycticorax<\/em>, AD, 2CY<\/strong>
\nBIF0669, 30\/06\/2010, Kiskuns\u00e1gi, Hungary, Mathias Putze
\n– at distance underwing uniform dark contrasting to the lighter body
\n– in summer 2CY with retained juvenile feathers, iris already turned dark orange<\/p>\n

\"BIF670_MPU_I8Z7685_100629_bcnheron-2-AD-1-2CY_hu_kiskunsagi\"<\/a>
\nBlack-crowned Night Heron Nycticorax n. nycticorax<\/em>, AD, 2CY<\/strong>
\nBIF0670, 29\/06\/2010, Kiskuns\u00e1gi, Hungary, Mathias Putze
\n– white tips to the greater and primary upperwing coverts but greyish lesser and median coverts enable aging as 2CY even at greater distance<\/p>\n

\"BIF671_MPU_I8Z7613_100629_bcnheron-FL-AD-2CY_hu_kiskunsagi\"<\/a>
\nBlack-crowned Night Heron Nycticorax n. nycticorax<\/em>, AD, 2CY<\/strong>
\nBIF0671, 29\/06\/2010, Kiskuns\u00e1gi, Hungary, Mathias Putze
\n– note the stout appearance<\/p>\n

\"BIF672_MPU_I8Z8793_100630_bcnheron-3-AD_hu_kiskunsagi\"<\/a>
\nBlack-crowned Night Heron Nycticorax n. nycticorax<\/em>, AD<\/strong>
\nBIF0672, 30\/06\/2010, Kiskuns\u00e1gi, Hungary, Mathias Putze<\/p>\n

\"bif0950_mhe1470_111023_bcnheron-1-1cy_az_besh-barmag\"<\/a>
\nBlack-crowned Night Heron Nycticorax n. nycticorax<\/em>, 1CY<\/strong>
\nBIF0950, 23\/10\/2011, Besh Barmag, Azerbaijan, Michael Hei\u00df<\/p>\n

>> ACOUSTIC ID >>>>><\/strong><\/p>\n\/wp-content\/uploads\/2016\/10\/BIF3583-1_PFR18136_0-00_210811_BIO_bcnheron-nycticorax-2-JUV-FC_d_sn_haselbach_REF-S-9_702_C-B.mp3<\/a><\/audio>\n

\"\"<\/p>\n

\"\"
\n– overview –<\/em>
\n\"\"
\n– detail –<\/em>
\nBlack-crowned Night Heron Nycticorax n. nycticorax<\/em>, JUV, calls in flight<\/strong>
\nBIF3583, 11\/08\/2021, Haselbacher Teiche, Germany, Patrick Franke<\/p>\n\/wp-content\/uploads\/2016\/10\/BIF3584-1_PFR18137_0-00_210811_BIO_bcnheron-nycticorax-3-JUV-FC_d_sn_haselbach_REF-S-9_702_D-B.mp3<\/a><\/audio>\n

\"\"
\n– overview –<\/em>
\n\"\"
\n– detail –<\/em>
\nBlack-crowned Night Heron Nycticorax n. nycticorax<\/em>, JUV, calls in flight<\/strong>
\nBIF3584, 11\/08\/2021, Haselbacher Teiche, Germany, Patrick Franke<\/p>\nhttps:\/\/birds-in-flight.net\/wp-content\/uploads\/2019\/12\/BIF3137-1_GRU_1-11_20191112_bcnheron-1-FC_AZE_p_20191112224900.mp3<\/a><\/audio>\n

\"\"<\/a>
\n– overview –<\/em>
\n\"\"<\/a>
\n– detail –<\/em>
\nBlack-crowned Night Heron Nycticorax nycticorax<\/em> ssp., calls in flight<\/strong>
\nBIF3137, 12\/11\/2019, Shirvan NP, Azerbaijan, Georg R\u00fcppel<\/p>\nhttps:\/\/birds-in-flight.net\/wp-content\/uploads\/2019\/03\/BIF2904-1_1-11_NYCNYC_NFC_20181208_0215_Ngulia-Kenya.mp3<\/a><\/audio>\n

\"\"<\/a>
\n– overview –<\/em>
\n\"\"<\/a>
\n– detail –<\/em>
\nBlack-crowned Night Heron Nycticorax nycticorax<\/em> ssp., calls in flight<\/strong>
\nBIF2904, 08\/12\/2018, Tsavo West NP, Kenya, Roland Neumann<\/p>\nhttps:\/\/birds-in-flight.net\/wp-content\/uploads\/2016\/10\/BIF0945-1_MHE19110_050418_111002_bcnheron-1-FC_aze_besh-barmag.mp3<\/a><\/audio>\n

\"\"<\/a>
\n– overview –<\/em>
\n\"\"<\/a>
\n– detail –<\/em>
\nBlack-crowned Night Heron Nycticorax n. nycticorax<\/em>, calls in flight<\/strong>
\nBIF0945, 02\/10\/2011, Besh Barmag, Azerbaijan, Michael Hei\u00df<\/p>\nhttps:\/\/birds-in-flight.net\/wp-content\/uploads\/2016\/10\/BIF0947-2_MHE194420_003512_110923_bcnheron-2-FC_aze_besh-barmag_shortened.mp3<\/a><\/audio>\n

\"\"<\/a>
\n– gaps shortened –<\/em>
\nBlack-crowned Night Heron Nycticorax n. nycticorax<\/em>, calls in flight<\/strong>
\nBIF0947, 23\/09\/2011, Besh Barmag, Azerbaijan, Michael Hei\u00df<\/p>\n

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

Cattle Egret<\/a> (v)
\nSquacco Heron<\/a> (v) (a)
\nLittle Egret<\/a> (v)
\nEurasian Bittern<\/a> (v) (a)
\nLittle Bittern<\/a> (a)<\/p>\n

#waterbird<\/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 heron, considerably smaller and stubbier than Grey Heron – nocturnal migrant, diurnal movements take place – migrates singly or in flocks in (loose) formation >> VISUAL ID >>>>> Black-crowned Night Heron Nycticorax n. nycticorax, 1CY BIF0667, 30\/06\/2010, Kiskuns\u00e1gi, Hungary, Mathias Putze – stout, medium-sized heron with rather short and strong … Continue reading Black-crowned Night Heron
Nycticorax nycticorax<\/em><\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":4137,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[135],"tags":[142],"class_list":["post-4135","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ardeidae","tag-black-crowned-night-heron-nycticorax-nycticorax"],"_links":{"self":[{"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/posts\/4135","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=4135"}],"version-history":[{"count":32,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/posts\/4135\/revisions"}],"predecessor-version":[{"id":13037,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/posts\/4135\/revisions\/13037"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/media\/4137"}],"wp:attachment":[{"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4135"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4135"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4135"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}