Family FRINGILLIDAE. 



Carduelis carduelis (L.) — Goldfinch. 



(Plate 15, fig. a-c). 

 (Snouckaert: Avifauna Neerlandica, p. 12, No. 15). 



Colour of surface of shell: 

 Colour of spots: 



Average dimensions: 

 Average weight of shell: 

 Texture of shell: 

 Shape : 

 Nest: 



Site of nest: 

 Number of eggs: 

 Breeding season: 



faint bluish white. 



reddish; brown; when lying deeper their 

 appearance is a faint violet grey. 



17.4 X 12.58 millimetres. 



0.085 gram. 



offers no special characteristic. 



varying. 



consists of vegetable material, lined with 

 wool, hair and seed down. 



in various trees, mostly rather high. 



5—6 (after-set: 4—5). 



end of April (beginning of May) — June 

 (beginning of July). 



Duration of incubation: 



about 13 days. 



