Fugleart: |
Sølvmåge x Kaspisk Måge - (Larus argentatus x Larus cachinnans) - Herring Gull x Caspian Gull |
Titel / info: |
2cy hybrid |
Lokalitet: |
Simrishamns hamn (Harbour of Simrishamn), Sverige |
Dato: |
20. januar 2012 |
Billede info: |
Considered as a cachinnans x argentatus, and probably a F1-hybrid.
At a first glance, it certainly gives the impression of a Caspian. However, a closer inspection reveals some striking details:
1.
Fine streaking not restricted to hindneck as in first winter cach, but also on the ear-coverts and extending up to crown.
2.
Underparts, including throat, breast and belly more boldly and extensively patterned than cach.
3.
Not that advanced scapular moult, more similar to the average Herring Gull. |
Billede opsætning: |
Canon EOS 7D + Canon EF 400/5.6 L USM |
Fotograf: |
David Erterius, Sverige |
Del af temaet: |
Hybrider |
Uploadet den: |
22. januar 2012 |
Hits: |
Billedet har været vist 1676 gange. |
| hi david,
note my comment on gull-research-talk:
http://www.talk.gull-research.org/viewtopic.php?f=13&t=676
best wishes
lou |
|
|
Nye kommentarer til dette billede er ikke muligt. |
Bemærk: at alle billeder har copyright og må ikke anvendes uden accept fra den respektive fotograf. |
|