D.F.O. Monthly Meeting
Nathan Pieplow -- A Refresher Course on Calls
and Songs of Avian Spring Migrants
Monday, April 26, 2010
Denver Musuem of Nature and Science
7:30 p.m.
What ARE bird songs and how do they differ from bird calls?
According to Frank B. Gill (1990) bird’s
D.F.O. Monthly Meeting
Nathan Pieplow -- A Refresher Course on Calls
and Songs of Avian Spring Migrants
Monday, April 26, 2010
Denver Musuem of Nature and Science
7:30 p.m.
What ARE bird songs and how do they differ from bird calls?
According to Frank B. Gill (1990) bird’s
