http://www.wqed.org/birdblog/2009/09/14/a-sound-like-spring-peepers/ A Bird Blog with Kate St. John Sun, 21 Mar 2010 10:51:56 +0000 http://wordpress.org/?v=2.9.2 hourly 1 http://www.wqed.org/birdblog/2009/09/14/a-sound-like-spring-peepers/comment-page-1/#comment-8134 Diane Wed, 16 Sep 2009 03:11:28 +0000 http://www.wqed.org/birdblog/?p=10345#comment-8134 Very, very interesting. Thank you. Very, very interesting. Thank you.

]]> http://www.wqed.org/birdblog/2009/09/14/a-sound-like-spring-peepers/comment-page-1/#comment-8133 Kate St. John Wed, 16 Sep 2009 02:59:34 +0000 http://www.wqed.org/birdblog/?p=10345#comment-8133 Counting the sounds sort of counts the birds. Granted, I can't figure out which bird is making which sound in the dark but if I estimate that I am hearing two "peeps" from the same bird before it passes out of hearing then dividing the count by two would give me the number of birds. I don't know the ratio so my calculation would be inaccurate but Cornell has published a study on it: http://www.birds.cornell.edu/brp/research/nocturnal-migrant-flight-call-research Counting the sounds sort of counts the birds. Granted, I can’t figure out which bird is making which sound in the dark but if I estimate that I am hearing two “peeps” from the same bird before it passes out of hearing then dividing the count by two would give me the number of birds. I don’t know the ratio so my calculation would be inaccurate but Cornell has published a study on it: http://www.birds.cornell.edu/brp/research/nocturnal-migrant-flight-call-research

]]> http://www.wqed.org/birdblog/2009/09/14/a-sound-like-spring-peepers/comment-page-1/#comment-8131 Diane Tue, 15 Sep 2009 23:53:03 +0000 http://www.wqed.org/birdblog/?p=10345#comment-8131 Kate, I don't understand what you would be doing by counting the sounds. Is that a way to count the number of birds? Kate, I don’t understand what you would be doing by counting the sounds. Is that a way to count the number of birds?

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