28 apr 2011


Acrocephalus

Separating Reed Warbler Acrocephalus scirpaceus
&
Marsh Warbler Acrocephalus palustris
 
in the hand by means of measuring the notch of the 2nd primary and the lenght of the wing.
 
After: a new method of identifying A.palustris, A.scirpaceus and A.dumetorum
in the hand by Norman Deans van Swelm & Peter de Knijff
(report Voorne Bird Observatory 1983).

Reed Warbler Acrocephalus scirpaceus 1CY 21062010 2826 Vlaardingen,nl c N D v S.jpg

1. Reed Warbler Acrocephalus scirpaceus 1CY 21062010 2826 Vlaardingen, The Netherlands c Norman Deans v Swelm






















Marsh Warbler Acrocephalus palustris 1CY 29082008 Dutch Waddensea c J.H.van Muiswinkel.jpg

2. Marsh Warbler Acrocephalus palustris 1CY 29082008 Dutch Waddensea, The Netherlands, c Dennis F. Asselbergs
     
 
 
Summary:
 
Reed Warbler Acrocephalus s.scirpaceus :
has relatively short wings with long notches on P2.
 
Eastern Reed Warbler Acrocephalus s.fuscus :
no individual data available but this subspecies has longer wings than nominate scirpaceus and longer notches than Mars Warbler Acrocephalus palustris.
 
Marsh Warbler Acrocephalus palustris:
has relatively long wings with short notches on P2.