Family COLUMBIDAE. 



Columba palumbus L. ~ Ring-Dove. 



(Plate 111, fig. a-c). 

 (Snouckaert: Avifauna Neerlandica, p. 76, No. 178). 



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: 



white. 



40 ;< 29 millimetres. 



1.31 gram. 



not specially characterized. 



mostly oblong-oval. 



consists of dry twigs and roots. 



in all sorts of trees at very variable heights; 

 also sometimes in Hawthorn bushes; fur- 

 ther, in deserted Corv/rfae-nests and Squir- 

 rels' dreys. 



2 eggs. 



April— October. 



about 17 days. 



