462 Mr. D. A. Bannerman on the ' [Ibis, 



tliey might still have had npstlings then, Tn summer they mount 

 up to the Pico de Teide and pursue the chase even in spite of the 

 sui¥ocating sulphurous fumes from the crater. On the 20th of 

 Februarj^, and following days, I noticed swarms of these birds 

 on their passage through, flying along the high mountain-sides 

 between Santa Cruz and Laguna." (Polatzek, Orn. Jahrb. 1908, 

 p. 164.) 



"Noticed only a few Swifts at Santa Cruz, March Soth, 1009." 

 (Bannerman, MS. diaries.) 



" The Swifts of the a/)?<!>-species leave Tenerife in the autumn." 

 (Von Thanner, Nov. Zool. 1904, p. 431.) 



Gran Canaria. 



19 March, 1888. " A few pallid Swifts seen." (Tristram, Ibis, 

 1889, p. 15.) 



" A bird of passage. ... I can verify now beyond a doubt that it 

 breeds in the tower of the Cathedral in Las Palmas, and I 

 received on the 10th of July two young fledged birds from 

 San Jose." (Holle, J. f. 0. 1857, p. 322, erroneously recorded 

 imder Cypselus apns.) 



"In August and September, 'and probably earlier in July, these 

 Swifts fly along the Barranco Guiniguada to San Mateo before 

 noon and return in the afternoon towards 5 o'clock." (Polatzek, 

 Orn. Jahrb. 1908, p. 163.) 



The following records are all my own : — 



Oct., Nov., Dec. No birds noted during these months (MS. diaries). 

 5 January, 1908. A flock of Pale Swifts seen at Santa Brigida (MS. 



diaries). 

 8 January, 1908. Large flock of Pale Swifts at Tafira (MS. diaries). 

 2 March, 1912. Ten birds seen at Juan Crande (Ibis, 1912, p. .595). 

 1 April, 1909. Two birds obtained, Santa Brigida (skins in British 



Museum). 

 8 April, 1909. Thousands of Swifts hawking over Aguimes, four 



days later all had disappeared (Ibis, 1912, p. 595). 

 22 April, 1913. Large numbers over fields near Las Palmas and 



following diiys (MS. diaries). 

 29 April, 1913, Birds seen at Firgas (MS. diaries). 

 May 1912. Several noted near Las Palmas (Ibis, 1912, p. 595), 



1-3 May, 1913. Several obtained at Firgas, sexual organs large (MS. 



diaries). 

 19-22 June, 1913, Many Pale Swifts at Alcaravaneras (MS. diaries). 

 18 August, 1908. A. few Pale Swifts seen in the Monte (Ibis, 1912, 



p. 595). 



