ML646378512
American Herring x Glaucous-winged Gull (hybrid) Larus smithsonianus x glaucescens
Beitragende/r
Datum
Ort
- Alter
- nicht spezifiziert
- Geschlecht
- nicht spezifiziert
Beobachtungsdetails
Photos. I identified this bird as a 1st-cycle "Cook Inlet" Gull based on the following features. The generally pale overall coloration and colder gray tones combined with the dusky but not black wing tips point to Glaucous-winged Gull parentage. In structure and size the bird seemed a bit small and less bulky than a pure Glaucous-winged or "Olympic" Gull. I noted that the basal two thirds of the bill is already showing signs of turning paler, which is consistent with 1st-cycle American Herring Gull and not normally show by either "pure" Glaucous-winged or Olympic Gulls. Also, the heavily spangled upper parts and the fairly flat sloping forehead are characteristics that suggest AHGU parentage. I can't really shoehorn this into being a paler Olympic Gull.
Technische Angaben
- Modell
- Canon PowerShot SX70 HS
- Objektiv
- 3.8-247mm
- ISO
- 640
- Brennweite
- 247 mm
- Blitz
- Flash did not fire
- Blende
- f/6.5
- Belichtungszeit
- 1/400 sec
- Abmessungen
- 1781 pixels x 1381 pixels
- Größe der Originaldatei
- 574.03 KB