TY  - RPRT
TI  - Effects of egg order on organic and inorganic element concentrations and egg characteristics in tree swallows, tachycineta bicolor
AU  - Christine M. Custer
AU  - Brian R. Gray
AU  - Thomas W. Custer
PY  - 2009
DO  - 10.1002/etc.88
UR  - https://pubs.usgs.gov/publication/70034318
ID  - 70034318
ER  -