Document 798
Harris, R.D. and D. Hatch. 1964. Winnipeg. National Research Council Associate Committee on Bird Hazards to Aircraft Fieldnote 20. December 1964. 6 pages.
Harris, R.D. and D. Hatch. 1964. Winnipeg. National Research Council Associate Committee on Bird Hazards to Aircraft Fieldnote 20. December 1964. 6 pages.
