tag:blogger.com,1999:blog-6321070.post3867527056991554416..comments2024-02-27T11:26:39.655-07:00Comments on Southern Rockies Nature Blog: Spring Birdsong in FallChas S. Cliftonhttp://www.blogger.com/profile/00923547685265741325noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-6321070.post-5924242952193344462008-09-29T06:02:00.000-06:002008-09-29T06:02:00.000-06:00The European Robin (Erithacus rubecula) sings spor...The European Robin (Erithacus rubecula) sings sporadically throughout the non-breeding season. This song is wistful and melancholy in contrast to its full-on joyful Spring song. I assume Robins sing this way to maintain ownership of their territory during the off-season.<BR/>PS I have seen Townsend's Solitaire once (In Julian, Southern California in January), but it didn't call.Jake Allsophttps://www.blogger.com/profile/18352337319705848623noreply@blogger.comtag:blogger.com,1999:blog-6321070.post-22925718495525339062008-09-23T10:33:00.000-06:002008-09-23T10:33:00.000-06:00It's photoperiod I think-- same day length as spri...It's photoperiod I think-- same day length as spring. It affects many birds and some cold- blooded animals too.Steve Bodiohttps://www.blogger.com/profile/14434597061701369867noreply@blogger.com