The 107th Christmas Bird count in the Central Valley
Trumpeter Swan Identification
Purple Martin Nesting in Place Country
Trumpeter Swan Identification
Purple Martin Nesting in Place Country
Vol. 10 No. 3, Summber 2007
Pandolfino, E. Review of the 107th Christmas Bird Count in the Central Valley of California: December 2006 – January 2007
Snowden, J.H. Does it Whistle or does it Trumpet? TrumpeterlWhistling Swan Comparisons
Kopp, D., and D. Airola. First Documented Nesting by the Purple Martin in Placer County, California, in nearly a Century