Ageing of Tree Pipits Anthus t. trivialis

Lennart Karlsson; Karin Persson; Göran Walinder

doi:10.34080/os.v3.23045

Ageing of Tree Pipits Anthus t. trivialis

Authors

Lennart Karlsson Falsterbo Bird observatory
Karin Persson Falsterbo Bird observatory
Göran Walinder Falsterbo Bird observatory

DOI:

https://doi.org/10.34080/os.v3.23045

Keywords:

bird ringing, bird banding, bird observatory, age differences, moult, appearance

Abstract

Ageing criteria in Tree Pipits Anthus t. trivialis were studied and photographed at Falsterbo Bird Observatory, SW Sweden, during autumn and spring migration. Several characteristics useful for ageing were found and documented. Iris colour and the pattern on the second outermost tail-feather are valid all year, while other characteristics on wing-feathers (moult contrasts, degree of wear) are valid either in autumn or in spring/summer, depending on the moult of these feather tracts. Moult and ageing criteria are briefly commented on along with some statistics.

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Published

1993-04-01

How to Cite

Karlsson, L., Persson, K., & Walinder, G. (1993). Ageing of Tree Pipits Anthus t. trivialis. Ornis Svecica, 3(2), 69–80. https://doi.org/10.34080/os.v3.23045

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Issue

Vol. 3 No. 2 (1993)

Section

Research Papers

License

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