Phylloscopus collybita

Chiffchaff / Gransångare

Main author:
Magnus Hellström, September 2014.

Supplemented by:
Simon S. Christiansen and 
Aron Edman, September 2014.
Citation: 
Ottenby Bird Observatory. 2015. Ringers' DigiGuide - Phylloscopus collybita. 
www.ringersdigiguide.ottenby.se
 
MOULT:
                      Adult          Young
Summer:      
SC               sp
Winter:           wp               wp
Young sp: The post-juvenile moult includes body, LC, MC and a variable number of GC (commonly in the interval of 3-6 GC), single or all tertials and sometime also single RR.
Young wp: The pre-breeding moult is usually less extensive than the post-juvenile moult and includes body and a varying number of LC, MC, inner GC, tertials and RR.
Adult SC: The post-breeding moult includes the whole plumage. Rare cases of retained/'forgotten' feathers are known.
Adult wp: The pre-breeding moult includes body and a varying number of LC, MC, inner GC, tertials and RR.
Number of GC included in the post-juvenile moult shown as percentage of 1cy birds at Ottenby 2000-2013 (n=398).
[The symbol + is used for birds showing irregular moult sequence.]
[Two categories of birds were excluded: 1) Birds that had not yet conducted the moult of the GC, and 2) birds where the assessment of the moult was deemed as less certain.]
AGE:

Autumn
Spring
SEX:

No plumage differences.
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