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Birds imported into the United States in 1972

Birds imported into the United States in 1972 are tabulated by species. Total numbers for the period 1968-72 are given for the more commonly imported taxa. The number of birds imported in 1972 (640,995) decreased by about one third from that of 1971, largely as a result of a ban declared on the importation of birds in August 1972 due to the outbreak of exotic Newcastle,disease. Much of the decr
Authors
R. B. Clapp

Experimental duck hunting seasons, San Luis Valley, Colorado, 1963-1970

No abstract available.
Authors
Richard M. Hopper, Aelred D. Geis, Jack R. Grieb, Lewis Nelson

An experimental translocation of the eastern timber wolf

No abstract available.
Authors
T.F. Weise, W. L. Robinson, R.A. Hook, L. D. Mech

Foreword

No abstract available.
Authors
C.S. Robbins