226 
IOWA ACADEMY OF SCIENCE Vor. XXIX, 1922 
On the morning of May 12, I discovered a female robin (it 
proved to be No. 57932 and this was the second time caught 
since banded) and a female bronzed grackle in the trap together. 
A free male grackle stood on the trap apparently contemplating 
his “unfortunate” companion within while another male stood 
on the ground at the side of the trap peering through the netting 
at the prisoner. Three or four other grackles were walking 
around and over the trap calling to the imprisoned bird which 
responded similarly. 
The robin had apparently not profited by the experience gained 
in its former capture for it as well as the grackle was making 
desperate efforts to escape from the trap although the robin’s 
efforts were more pronounced. As a result of these strenuous 
efforts to escape the forehead at the base of the bill of the robin 
was again bleeding but otherwise the bird was uninjured- The 
band when examined was in good condition and perfectly legible 
although scratched a little. While examining the band the bird 
pecked viciously at my hand and even held onto the skin with 
her bill during a part of the time that the examination was being 
conducted as well as struggling considerably during this pro- 
cedure. When released she flew away quickly giving a few 
alarm notes. 
The bronzed grackle (No. 56121) was injured in no way that 
I could discover. Her efforts to escape from the trap were not 
so energetic as those of the robin. The bird struggled only a 
very little in the hand and when the latter was opened for her 
release the grackle lay quietly for a few moments before flying 
away. 
A good many robins and bronzed grackles have been taken 
since this date and all the individuals of each species seem to 
exhibit similar characteristics. The robins invariably struggle 
more while in the trap and make desperate efforts to escape when 
the operator approaches, the while calling wildly and loudly. 
The grackles, especially the males, take things more calmly; they 
are fighters and their efforts to escape from the trap are less 
pronounced. When released the grackles invariably fly much 
farther before alighting than do the robins. 
An immature female cardinal (No. 51280) was taken in a 
trap pn the morning of August 29. The bird was much excited 
and jumped about in the trap chirping loudly. When caught, 
it struggled hard and attempted to resist the captor by pinching 
