Family PARIDAE. 



Aegithalos caudatus europaeus (Hermann) — 

 Long-tailed Titmouse. 



(Plate 44, fig. a-c). 

 (Snouckaert: Avifauna Neerlandica, p. 31, No. 71). 



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: 

 Duration of incubation: 

 Remarks : 



lime-white; slightly yellowish or greyish- 

 yellow, in dull tints. 



reddish, in dull or brighter shades. The mark- 

 ings are frequently very obscure or 

 altogether lacking. 



14X 11 millimetres. 



0.05 gram. 



like that of the genus Parus. 



ovoidal. 



is built of moss, bark-fibres, small fragments 

 of bark, and spiders' webs; lined with 

 feathers, wool and hair; the orifice is on 

 one side at the top of the nest. 



by preference against the trunk of a tree or 

 in a fork of a branch, at various heights; 

 sometimes in thick bushes. 



9-12 (after-set: 6-8). 



about the middleof April— beginning of June. 



about 13 days. 



Caudatus-eggs correspond in general character 

 more to eggs of Regulidae than to those 

 of Paridae ; the texture of the shell of the 

 first named family is however quite different. 



