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IOWA ACADEMY OF SCIENCE Vor. XXIX, 1922 
into the first compartment of the trap but persistently refuse to 
become confused or fly up; if frightened, they run out through 
the low entrance and thus escape easily. 
I should add, too, that the bronzed grackles seem' to have adopted 
a bit of sagacity on their own account and they also have become 
more wary and difficult to catch in the funnel traps. Other 
means are being devised to bring about the wished-for results. 
While more than 150 nestlings have been banded, as yet only a 
limited number of adult birds has been captured and banded (about 
40) and data are not at hand upon which definite conclusions as to 
their behavior may be based. Every available bit of evidence is 
of value. Our information is being constantly augmented in 
various parts of the country through the efforts of a considerable 
number of persons under the direction and leadership of the 
United States Biological Survey. Larger results may be looked 
for as the work of trapping and banding becomes a matter of 
more general effort among ornithologists. 
University of Iowa 
