Please use this identifier to cite or link to this item:
Title: The call note of the Chiffchaff Phylloscopus collybita in Malta
Authors: Sultana, Joe
Keywords: Birds -- Malta
Chiffchaff -- Vocalization -- Malta
Issue Date: 1995
Publisher: Birdlife Malta
Citation: Sultana, J. (1995). The call note of the Chiffchaff Phylloscopus collybita in Malta. Il-Merill, 28, 35-36.
Abstract: The Chiffchatf Phylloscopus collybita is a very common autumn migrant and winter visitor from early October to early April with concentrations of about 200 birds in winter in areas where food is plentiful, such as Lunzjata in Gozo (Sultana & Gauci 1982). An average of 1000 Chiffchaffs are ringed every year by ringers. It seems that both the nominate race and the subspecies abietinus occur, but no attempt has ever been made to assess the percentage of abietinus ringed, as the separation of these two races is rather difficult according to Svensson (1984). Some birds do look greyer than others and sizes also differ. But biometrics are not always helpful to separate these two races as wing and tail lengths overlap to a great extent (Williamson 1976). The other subspecies P.c. tristis is not difficult to separate from its plumage (Svensson i 984, & pers. obs.), and 2-5 birds belonging to this race are ringed annually.
Appears in Collections:Il-Merill : issue 28 : 1992-1994
Il-Merill : issue 28 : 1992-1994

Files in This Item:
File Description SizeFormat 
The_call_note_of_the_Chiffchaff_Phylloscopus_collybita_in_Malta_1995.pdf135.92 kBAdobe PDFView/Open

Items in OAR@UM are protected by copyright, with all rights reserved, unless otherwise indicated.