904 Mr. J. D. D. La Touclie on the [Ibis, 



ttikeu ill 1914 has three egg.s much resenibliiig those taken 

 on the Old of May, 1915, while the fourth resembles somewhat 

 those of the clutch taken on the 10th of May, 1915. There 

 are four eggs in a clutch. Fifteen eggs vary in size from 

 0-91 X 0-G7 and 90 x ()-09 ui. to 082 x 0G7 in., they average 

 0-89x0 68 in. 



Two nearly hard-sat clutches of four and five eggs were 

 brought to me from the mountains on the 25th of June, 

 1917. 



138. Picus canus jessoensis Stejn. 



Gecinus canus D. & 0. p. 51 (part). 



I'he Pale Grey-headed Woodpecker is a very common 

 resident in north-eastern Chihli. 



The birds [uocured in tlie vicinity of Chinwaugtao show 

 considerable variation in the amount of black on the na[)e. 

 Some examples have no trace of markings on the occiput 

 and nape, whereas others have these parts as well marked as 

 some Ciiinkiang (Lower Yangtse) specimens of P. guerini. 

 Between these two extremes there is perfect gradation in my 

 series from Chinwaugtao. The I)right green upper parts of 

 the winter plumage become almost pure grey in summer, 

 not by abrasion but tlirough the fading of the green into 

 grey. Tiie under paits also become pale greyish. The wing- 

 measurements of fourteen males and of six females of Grey- 

 headed Woodpeckers in my cullection are as follows : — 



P. c.Jfssot'M.sis, north-east Chihli .... 11 J' 5'65-5'93, 2 5 5'80in. 



P. c. ziinmermanni, Lower Yangtse. . 2 ^ o'71, 3 $ 5"70-o-77in. 



P. c. jessoensis, Ynensan, Corea .... 1 cj 5-77, 1 5 5-77 in. 



The wing-measurements of eleven males of P. c. jessoensis 

 from north-east Chihli are as follows : — 



Head and nape unmarked 5-70, 5*72, o-78 inches. 



,, ,, ,, slightly marked . . o-70, 5'75, 5'87, o"93 „ 

 ,, ,, ,, well marked .... 5-65, 5-75, 5-85, 5-90 ,, 



Three young birdsj fledged, but unable to fly, were brouglit 

 to me on the 2nd of July, 1917. One died that day, but I 

 kept the others for some time, feeding them on choppeil raw 

 meat and IJread and milk and letting them pick up ants for 



