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20110630-003
2011-06-30
Part of John Froschauer Photographs

Aaron Grossberg '12, Kirsten Paasche '13, and Julyie Smith lay out the notes of recorded crossbill songs to compare for matches between different birds at PLU on Thursday, June 30, 2011.

20110630-001
2011-06-30
Part of John Froschauer Photographs

Kirsten Paasche '13, talks with Julyie Smith whlie they compare songs and looks for matching notes of crossbills at PLU on Thursday, June 30, 2011.