{"id":6921,"date":"2021-07-30T22:30:43","date_gmt":"2021-07-30T21:30:43","guid":{"rendered":"http:\/\/birds-in-flight.net\/?p=6921"},"modified":"2021-08-16T15:51:24","modified_gmt":"2021-08-16T14:51:24","slug":"goosander-mergus-merganser","status":"publish","type":"post","link":"https:\/\/birds-in-flight.net\/?p=6921","title":{"rendered":"Goosander
Mergus merganser<\/em>"},"content":{"rendered":"

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

– rather large anatid, slightly larger than Mallard<\/a>
\n– diurnal migrant, probably also nocturnal
\n– migrates pairwise or in small to medium flocks in formation<\/p>\n

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

\"\"<\/a>
\nGoosander Mergus m. merganser<\/em>, F AD (two uppermost), 1CY<\/strong>
\nBIF1634, 14\/10\/2013, Wermsdorf, Germany, Mathias Putze
\naging is easier in direct comparison
\n– JUV paler overall
\n– diffuser border between head and neck (similar to Red-breasted Merganser<\/a>, BIF1971)
\n– pale lores and bill<\/p>\n

\"\"<\/a>
\nGoosander Mergus m. merganser<\/em>, F AD (centre), 1CY<\/strong>
\nBIF1636, 14\/10\/2013, Wermsdorf, Germany, Mathias Putze
\n– from this angle aging is more difficult but note sharp contrasting, whiter chin of AD<\/p>\n

\"\"<\/a>
\nGoosander Mergus m. merganser<\/em>, F probably 2CY<\/strong>
\nBIF1909, 16\/05\/2011, Choolbasan, Mongolia, Mathias Putze
\n– similar to F AD -> Red-breasted Merganser<\/a> but heavier with bulkier head and neck
\n– sharp contrast between rusty-brown head and grey neck
\n– wing with pure white speculum
\n– dark hand contrasting to grey arm<\/p>\n

\"\"<\/a>
\nGoosander Mergus m. merganser<\/em>, M AD BREED<\/strong>
\nBIF1630, 14\/01\/2017, R\u00fcgen, Germany, Mathias Putze
\n– much bulkier head and neck than -> Red-breasted Merganser<\/a> (BIF1966)
\n– dark red bill with distict hook
\n– pure white inner-wing with only narrow grey leading edge and dark hand<\/p>\n

\"\"<\/a>
\nGoosander Mergus m. merganser<\/em>, M AD BREED<\/strong>
\nBIF1631, 14\/01\/2017, R\u00fcgen, Germany, Mathias Putze
\n– black head with dark eye sharply contrasting with completely white underside -> Red-breasted Merganser<\/a> (BIF1967)
\n– feet do not reach the tail tip<\/p>\n

\"\"<\/a>
\nGoosander Mergus m. merganser<\/em>, M AD BREED<\/strong>
\nBIF1632, 14\/01\/2017, R\u00fcgen, Germany, Mathias Putze
\n– black scapulars and grey back, same in M AD Red-breasted Merganser<\/a><\/p>\n

\"\"<\/a>
\nGoosander Mergus m. merganser<\/em>, M F AD BREED<\/strong>
\nBIF1633, 28\/05\/2014, Oendorchan, Mongolia, Mathias Putze<\/p>\n

\"\"<\/a>
\nGoosander Mergus m. merganser<\/em>, M F<\/strong>
\nBIF1635, 01\/02\/2010, Leipzig, Germany, Mathias Putze
\n– from below rounded tail and duck-like silhouette
\n– bill slender and pointed
\n– white secondaries<\/p>\n

\"\"<\/a>
\nGoosander Mergus m. merganser<\/em>, M F AD BREED<\/strong>
\nBIF1637, 14\/01\/2017, R\u00fcgen Germany, Mathias Putze
\n– in phases of gliding wings bent downwards (left M)<\/p>\n

\"\"<\/a>
\nGoosander Mergus m. merganser<\/em>, M AD BREED<\/strong>
\nBIF1639, 14\/01\/2017, R\u00fcgen, Germany, Mathias Putze
\n– underside of AD M can appear peachy-white<\/p>\n

\"\"<\/a>
\nGoosander Mergus m. merganser<\/em>, M F AD BREED<\/strong>
\nBIF3486, 21\/01\/2021, Blankensee, Germany, Patrick Franke<\/p>\n

\"\"<\/a>
\nGoosander Mergus merganser<\/em>, M 2CY<\/strong>
\nBIF1641, 14\/01\/2017, R\u00fcgen, Germany, Mathias Putze
\n– white on wing coverts indicate M<\/p>\n

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

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

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

Red-breasted Merganser<\/a> (v)
\nCommon Goldeneye<\/a> (v)
\nCommon Shelduck<\/a> (v)
\nCommon Eider<\/a> (v)<\/p>\n

#waterbird #waterfowl #wildfowl<\/p>\n

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

>> GENERAL >>>>> – rather large anatid, slightly larger than Mallard – diurnal migrant, probably also nocturnal – migrates pairwise or in small to medium flocks in formation >> VISUAL ID >>>>> Goosander Mergus m. merganser, F AD (two uppermost), 1CY BIF1634, 14\/10\/2013, Wermsdorf, Germany, Mathias Putze aging is easier in direct comparison – JUV … Continue reading Goosander
Mergus merganser<\/em><\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":6922,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29,288],"tags":[233],"class_list":["post-6921","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-anatidae","category-ducks","tag-goosander-mergus-merganser"],"_links":{"self":[{"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/posts\/6921","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=6921"}],"version-history":[{"count":16,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/posts\/6921\/revisions"}],"predecessor-version":[{"id":13050,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/posts\/6921\/revisions\/13050"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=\/wp\/v2\/media\/6922"}],"wp:attachment":[{"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6921"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6921"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/birds-in-flight.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6921"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}