. Department bulletin. Agriculture; Agriculture. BULLETIN 1145, U. S. DEPARTMENT OF AGRICULTURE. of (he number, the species of bird, and the date of release. In addi- tion to wild ducks, numbers of }'Oung of other marsh birds were marked in a similar manner before they were able to fly. The re- lease of these banded birds was given publicity, and reports on bands recovered have been received from widely scattered sections in the United States and even from Canada and Mexico. An account of these records is presented in detail in this bulletin. Bands were placed on 1,241 individuals of 23 specie
. Department bulletin. Agriculture; Agriculture. BULLETIN 1145, U. S. DEPARTMENT OF AGRICULTURE. of (he number, the species of bird, and the date of release. In addi- tion to wild ducks, numbers of }'Oung of other marsh birds were marked in a similar manner before they were able to fly. The re- lease of these banded birds was given publicity, and reports on bands recovered have been received from widely scattered sections in the United States and even from Canada and Mexico. An account of these records is presented in detail in this bulletin. Bands were placed on 1,241 individuals of 23 species of birds of large or medium size belonging to various families, the majority on wild ducks of 9 species. The bands used were of two kinds, both made of alumi- num and manufactured originally for use in marking poultry. In each style a serial num- ber was stamped on one side. The reverse of one was marked, " No- tify U. S. Dept. Agt, Wash. D. C.," and of the other, " Notify Bio- logical Survey, Wash- ington, D. ' In the case of birds that had been at liberty for more than a year the bands returned were badly worn, and those received after two years' wear had be- come thin and friable. One band more than four 3rears old was re- covered, but it is prob- able that on most birds that survived beyond a period of three years the bands had become worn until they were broken and lost. To be used successfully, there- fore, bands for water birds should be twice as thick as those ordi- narily used for poultry. The thicker bands are now being employed b}^ the Biological Survey in its extensive bird-banding operations. All birds banded as a basis for the present study were released near the Duckville Gun Club, at the mouth of Bear River, Utah, save for a few that in 1916 were given to the State fish and game commission for exhibition at the annual State fair in Salt Lake City; these were subsequently released near Geneva, Utah, on the shore of Utah Lake. Of the 1,241 bird
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Keywords: ., bookauth, bookcentury1900, bookdecade1920, booksubjectagriculture
