ML619640542
Beitragende/r
Levi Rehberg Medien dieser/s Beitragenden Profil
Datum
Ort
Shollenberger Park
Sonoma, California, United States
Medien von diesem Ort Illustrierte Checkliste- Alter und Geschlecht
- Männchen, Alter unbekannt - 1
Kommentare
Rare black-headed variant.
Beobachtungsdetails
Including one almost fully black-headed variant. I'm not really sure how such birds come to be (the information I could find was limited) but I do know that they are very rare. One theory I could find was that they are a genetic throwback to the Andean Duck (a very closely related bird that was once considered the same species, but was formally split). Interestingly, the Colombian population of Andean Ducks is somewhat intermediate between the two, with variable amounts of white on their cheeks. This 'Colombian' Andean Duck was thought to be a possible hybrid population back when the three were considered to be of the same species. Such birds are nearly identical to the duck I saw.
Technische Angaben
- Modell
- Canon EOS 7D
- Objektiv
- 150-600mm F5-6.3 DG OS HSM | Contemporary 015
- ISO
- 1000
- Brennweite
- 600 mm
- Blitz
- Flash did not fire
- Blende
- f/6.3
- Belichtungszeit
- 1/800 sec
- Abmessungen
- 3821 pixels x 2322 pixels
- Größe der Originaldatei
- 1.62 MB