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Id | 5792 | ||||||||||||
Family | Leaf Warblers ~ Løvsangere ~ Mosquiteros (Phylloscopidae) | ||||||||||||
Species |
Common Chiffchaff (Phylloscopus collybita) Gransanger ~ Mosquitero Común ~ Gransångare |
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Subspecies | abietinus? | ||||||||||||
Locality |
Kalvebod Fælled, Denmark
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Date | 2024-04-17 | ||||||||||||
Sex, Age, Comment |
Pumpehus-broen, Hejresøen. Originally thought to be a tristis. Bird 3. Fourth day. Still calling exclusively with the same call, but today it included a few chatter notes (in first sound clip) similar to the ones often heard at the beginning of the chiffchaff song. But it never got into singing. Perhaps it is a female. And perhaps it is a young bird, because today it started to flutter its wings several times, as a begging juvenile would. However, I've seen especially magpies do the same now in spring, and one shouldn't think it had anything to do with food begging but rather a behavior related to breeding, pair matching. But the bird continues not to be interacting with other phylloscopuses, though many are present. I tried to provoke it with song of both collybita chiffchaffs and tristis, but no response. Actually when I tried with Iberian Chiffchaff it seemed to be more interested, but without going crazy. The call is somewhat similar to what the Iberian has, but comparing the spectrograms they are very different. Interestingly, in photos 1 and 2 a yellow alula and underwing coverts are seen, and I think I have read that it can be a crucial character for identifying tristis - which should not have any yellow - hence all good for abienitus. Notice: the first spectrogram shows a fraction with chatter and the call. |
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Same bird | 174 | ||||||||||||
Sound |
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