1919-] Birds of the Canary Islands. 129 



in the British Museum) of the typical Wood-Warhler on 

 2Q April, 181)0, which date coincides with the remarkable 

 migratory movements which took place in that year iii the 

 Canary Islands. 



In Dalmatia, Morocco, and Algiers a very closely allied 

 race occurs, P. s. erlangeri. It is unlikely, however, that 

 this form ever visits the Canaries. 



Phylloscopus coUybita collybita"^. European Chiffchaff. 



Sylvia collybita Vieill. N. Diet. d'Hist. Nat. xi. 1817, 

 p. 235 — Type locality : France. 



The European ChiflFchaff is a Bird of Passage in the Canary 

 Islands, so far recorded during the spring migration only. 



Owing to the western islands literally teaming with 

 resident ChiffchafFs (P. c. canariensis), the migratory move- 

 ments of the European species through the Archipelago are 

 apt to be lost sight of. This probably accounts for the only 

 records of the European Chiifchaff coming from Euerte- 

 ventura — one of the eastern islands, where there are very 

 few resident Chiffchaffs, belonging to still another subspecies 

 (P.. c. exsul). 



Polatzek remarks that he killed specimens of this bird in 

 Lanzarote in the winter of 1904 (Orn. Jahrb. 1909, p. 123j, 

 where he noted that it was a new record for the Canaries. 



Curiously enough, the second genuine occurrence of the 

 European Chiftchaff in the Canary Islands was that of 

 two birds (a pair) shot by Thanner at Antigua in Euerte- 

 ventura on 14 March, 1904, and erroneously recorded by 



• Note. — Another form of the Chiffchaff, Phylloscopus collybita abietina 

 (Nilss.), was recorded by Polatzek (Orn. Jahrb. 1908, p. 82) as having 

 been obtained by him in 1903 and 1904 in Lanzarote and Fuerteventura, 

 and he particularly notes that it is a new record for the Canary Islands. 

 In a later part of the same paper, where he publishes a full list of the 

 migrants which he had noted, he substitutes the typical Chiffchaff 

 (P. coUybita) for the above-named race, remarking that it is a new 

 record for the islands (Orn. Jahrb. 1909, p. 123). No explanation is 

 given as to why P. c. abietina is omitted, but it seems quite clear that 

 the author had in the meantime discovered that his Chififchaffs were 

 wrongly identified in the first place. The specimens are in the collection 

 of Ritter von Tschusi, Villa Tannenhof, near Halleiu, Austria, and 

 should be examined when circumstances permit. 



SEK. XI. VOL. I. K 



