CASSINIA, NO. XVIII. 



PLATE IV. 



Song Records. 



Oven-bird. 



Chickadee.. ■ *2. 





Chickadee .^ Robjn. 



3.^ 



I > f i f f f 



I" « 4iiCff..iir,,witffii 



Robm Rob/n. 



J^92 



Rob/n 



t 4lM';^gf^MlJ^l^ 



Robin 



1=92 "2*^'^ ^:^; ^ ■ ^ 



Robin. 



J:-88. d 



S i^ 



j-.g^Robin 



10. 



* 



cirg' tre/" cii^ ^ 



