Expedition to the Eastern Canary Islands. 



97.f^ 



Two clutches of eggs were obtained : a marked difference 

 existed between thena, the one having a totally different 

 ground-colour and markings from the other. Both were 

 obtained in Fuerteventura. 



Clutch A. Two eggs brought into camp by boys at 

 Antigua, 15. v. 13. 



Clutch B. Two eggs said to have been taken at Tuineje 

 in June; these contained well-developed chicks. 



In clutch A the ground-colour is very pale coffee-colour, 

 the general effect showing a yellowish tinge ; the overlying 

 markings may be described as ill-defined suffused blotches of 

 yellowish-brown and umber-brown. One egg in particular 

 is more heavily marked than the other ; there seems to be 

 no tendency for the markings, which are evenly distributed 

 over the shell, to be gathered round the poles. 



In clutch B the ground-colour is creamy white in one Gi^^, 

 pale buff in the other ; each is spotted and speckled unevenly 

 with umber-brown and pale rufous with underlying blotches 

 of stone-colour. In this clutch, as in the former, one egg 

 is more heavily marked than the other. 



Measurements of the four eggs are : — 48 x 32*5, 44*5 X 34, 

 49-5 X 32, 46-5 X 30-5 mm. 



(Edicnemus cedicnenms insularum. Eastern Canary Islands^ 

 Tliick-knee. 



(Edicnemus ce. insularum Sassi, Orn. Jahrb. 1908, p. 32; 

 Bannerman, Part I. pp. 44, 58, 61, 71, 84, 87, 89. 



When engaged in working out a collection of birds from 

 Gran Canaria I was unable to identify specimens from that 

 island and from Tenerife with Dr. Sassi's description of 

 CE. ce. insularum. During my recent expedition I collected 

 a series of ten birds from the islands of Fuerteventura, 

 Lanzarote, Graciosa, and Allegranza. On comparing this 

 series with examples from the western islands, I saw at once 

 that they were different and that OE oe. insularum Sassi 

 must be upheld. 



The ten examples of OS. ce. insularum which I obtained in 

 the islands mentioned, when compared with typical <J^. oe. 



t2 



