Family ALAUDIDAE. 



Lullula arborea (L.) — Wood-Lark. 



(Plate 29, fig. a-d). 

 (Snouckaert: Avifauna Neerlandica, p. 23, N°. 47). 



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 : 



dull white, frequently slightly reddish. 



brown; greyish or reddish brown; when lying 

 deeper they are of a violet grey appearance. 



21 X 15.4 millimetres. 



0.155 gram. 



finer than that of the genera Alauda and 

 Galerida. 



fine ovoidal. 



is built of withered parts of plants and moss, 

 often lined with hair or wool. 



in a little hollow on the ground, concealed 

 under overhanging low plants or shrubs. 



4—5 eggs. 



April— June. 



About 13 days. 



