VOL. X.] HABITS OF SPARROW-HAWK. Ill 



This year, 1916, I have examined fourteen nests and 

 measured several ; I append some of the measurements, 

 as the variations in size, etc., may interest others. 



DETAILS OF SOME NESTS EXAMINED IN 1916. 



No account of the Sparrow-Hawk would be complete 

 without some mention of the spring evolutions. These 

 begin as early as mid-March and may be seen performed, 



