in two Andalucian Sierras. 471 



Sierra Nevada. — A. single male was seen in a retired 

 corner of the Mouacliil valley at 5000 h., also evidently 

 niigratino:. 



The normal passage, via the lowlands, took place between 

 early April and the end of May. 



^Phylloscopus trochilus trochilus (L.). Willow- 

 Warbler. 



Phylloscopus colly'bita. Cliiffchaff. 



Neither the Willow-Warbler nor Chitfchaff in their re- 

 spective seasons seemed to frequent altitudes greater than 

 2500 ft. 



■^Phylloscopus bonellii bonellii (Vieill.). Bonelli's 

 Warbler. 



San Cristobal. — A Bonelli's Warbler was seen in a bleak 

 spot at 4000 ft. on April 23rd, evidently on passage ; we 

 were probably too early to make observations as to breeding. 



Sierra Nevada. — On April 29th, at 5000 ft., a male with 

 testes of half-size was shot, and on jNIay 3rd the song pro- 

 claimed that the species would i)robably breed in the bush 

 and pine-tree parts of the " middle zone." 



Cettia cettii. Cetti's Warbler. 



On 22nd March we were surprised to hear the strident 

 babble of a Cetti's Warbler in an oleander thicket at 

 1500 ft., at the base of San Cristobal. Otherwise we only 

 met with the species in the lowlands, where it breeds 

 plentifully, if somewhat locally. 



^Hypolais poly'GLOTta (Vieill.). Melodious Warbler. 



Hypolais pallida opaca Cab. Olivaceous Warbler. 



Neither the Melodious nor Olivaceous Warblers, both 

 species abundant summer visitors to the lowlands, were 

 observed in the Sierras. 



Sylvia borin. Garden Warbler. 



Sylvia hortensis, nee auct. Orphean Warbler. 



Both the Garden and Orphean Warbler were only met 



