Family PERDICIDAE. 

 Perdix perdix (L.) — Common Partridge. 



(Plate 114, fig. a-c). 

 (Snouckaert: Avifauna Nccrlandica, p. 78. No. 183). 



Colour of surface of shell: 



Average dimensions: 



Average weight of shell : 



Texture of shell: 



Shape : 



Nest: 



Site of nest: 



Number of eggs: 

 Breeding season: 

 Duration of incubation: 

 Remarks : 



yellowish, yellowish green, greyish green, 

 or brownish. 



35 X 26.5 millimetres. 



1.43 gram. 



smooth, with many clearly visible pores. 



more or less pyriform. 



composed of vegetable materials. 



in a little hollow in the ground, in long 

 grass; in clover and corn-fields, etc., on 

 the sides of ditches; also among the trees 

 on the edges of woods; among sand-ely- 

 mus, heather, etc. 



10—16 (sometimes more). 



May — beginning of July. 



about 21 days. 



Brownish specks or small spots sometimes 

 occur, in which connection I point out 

 here, that in the allied genus Caccahis the 

 eggs are normally spotted with yello- 

 wish or reddish brown. 



