LANIFDAE. 



be scarcely acceptable. For the question would then be justifiable 

 why such well-being should regularly and by preference fall to the 

 lot of a part of the individuals of Lanius collurio and Sylvia atricapilla 

 or, assuming that this condition prevails more generally (which may 

 well be supposed to be the case), why it should regularly receive 

 expression oologically almost exclusively in only these two species 

 of the order Oscines. 



