Family FALCONIDAE. 



Falco subbuteo L. — Hobby. 



(Plate 107, fig. a-c). 

 (Snouckaert: Avifauna Neerlandica, p. 73, No. 173) 



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: 



faint yellowish brown. 



deep yellowish brown, in various shades; 

 when light shines through the eggshell it 

 shows through yellowish white. 



41.2 X 33.3 millimetres. 



1.98 gram. 



as is also the case with C. tinnuncutus, the 

 texture is still finer and more uniformly 

 grained than that of the other genera. 



mostly bellied, short ovoidal. 



consists of vegetable materials, lined with 

 hair, wool and feathers. (Uses Corvidae-or 

 other nests by preference). 



in the tops of lofty trees, especially in fir- 

 trees. 



3-4. 



June--July. 



about 3 weeks. 



