TY  - RPRT
TI  - Energy budget and prey requirements of breeding lapland longspurs Calcarius lapponicus near Barrow Alaska, U.S.A.
AU  - T. W. Custer
AU  - R. G. Osborn
AU  - F.A. Pitelka
AU  - J.A. Gessaman
PY  - 1986
DO  - 10.2307/1551091
UR  - https://pubs.usgs.gov/publication/70006772
ID  - 70006772
ER  -