NATURE'S CAROL SINGERS. 



and inside an old tennis shoe left on a 

 ledge in a boat-house. It is made of 

 pellets of mud generally intermixed with 

 straws and lined with dead grass and 

 feathers. The structure differs in shape 

 according to the 

 site selected for 

 it. Frequently 

 it is formed like 

 half or two-thirds 

 -^-~-^ f a saucer when 



> > *^^ ^U| plastered against 



v ^^^^^B a wa ^ or ra ^ er j 



V^^^ but when on a 



^^k^^Jf flat surface the 

 I ^*V^^^ outside consists of 



^V T^. ' a circular wall of 



>X^ mud. 



iT^^XrS The eggs, num- 



\ ; >!X bering from four 



to six, are white, 

 spotted and 

 blotched with 

 and underlying 



NEWLY-FLEDGED SWALLOW. 



dark, reddish-brown 

 specks of grey. 



This bird's song is one of the most joy- 

 ous and spontaneous in all the realms of 

 Nature, and the poet might well say : 



" Thou hast no sadness in thy song." 



It is uttered both whilst the melodist 



246 



