150 



Trowbridge — Interlocking of Emarginate 



Table I. 



Sharp-shinned hawk (Accipiter velox) (5 outer primaries emarginate). 

 Number of primaries interlocked in columns A and B. 









A 



B 



Both 





No. 



- 



Date. 



wing. 



wing. 



wings. 



Eemarks. 



1 



Sept. 



8, 1891 



2 



2 



4 





2 



a 



it a 



3 



3 



6 





3 



a 



a it 



4 



._ 



4 



Wing B badly shot 



4 



v. 



it a 



5 



3 



8 





5 



t. 



i. a 









Both wings badlv shot, 













some primaries interlocked 



6 



a 



a a 



5 



5 



10 





7 



a 



a a 



3 



4 



7 





8 



a 



a a 



5 



5 



10 





9 



Sept 



9, 1S91 



4 



5 



9 



9 



10 



a 



a a 



3 



2 



5 





11 



Sept 



14, 1891 



J 





1 



Wing B moulting 



12 



a 



" " 



o 



3 



5 



9 



13 



a 



a a 



2 



3 



5 



9 



14 



a 



a t. 



4 



4 



8 



6 



15 



a 



a a 



4 



5 



9 





16 



It 



a a 



5 



1 



6 





17 



(t 



it a 















Hawk wounded, record 

 not possible 



18 



a 



a a 



4 



3 



7 





19 



a 



a a 



1 



2 



3 





20 



it 



a n 



5 



3 



8 





21 



a 



a a 



4 



2 



6 



9 



22 



a 



a a 



5 



2 



7 



9 



23 



a 



tt a 



3 



3 



6 



9 







rotal 



74 



60 

 Table 



134 

 II. 





Osprey, (Pandion halicetus carolinensis) 4 outer primaries emarginate. 

 Marsh hawk, (Circus hudsonius) 4 outer primaries emarginate. 

 Broadwinged hawk, (Buteo latissimus) 3 outer primaries emarginate. 









Date. 



Number of primaries 

 interlocked. 





Species. 



A 

 wing. 



B 



wing. 



Both 



wings. 



Remarks. 



Osprey 



S 



ept 



8, 1891 













Bird wounded, 



Osprey 



Marsh hawk 

 Broadwinged 

 hawk 





a 



a 

 a 



9, " 



14, " 

 14, » 



3 

 4 

 2 



3 



2 



3 



7 

 4 



no record 

 WingB broken 



at tip 

 Young of year 



Young of year 



