TY  - RPRT
TI  - Size and mass of grit in gizzards of sandhill cranes, tundra swans, and mute swans
AU  - J. Christian Franson
AU  - Scott P. Hansen
AU  - Adam E. Duerr
AU  - Stephen DeStefano
PY  - 2001
DO  - 10.2307/1522036
UR  - https://pubs.usgs.gov/publication/70006595
ID  - 70006595
ER  -