Although both species might be using the same entrance, I wonder if the internal structure of the tree has some room for two nests. It is not uncommon for two or three species (or more) to share the same snag if there are enough cavities. I used to study Western Bluebird nests in AZ using a peeper camera, and we found some pretty neat nest sites. One nest in particular had an entrance about 6 feet above the actual nest. We'd sneak the camera into a little crack that was lower down since we couldn't see the nest from the hole that the parents used as an entrance. White-breasted Nuthatches were breeding in the same tree. Years of rot and bird engineering can leave a Ponderosa riddled with nooks and crannies. I hope they're successful!
Christian Nunes [email protected] http://www.flickr.com/photos/christian_nunes/ To: [email protected] Subject: [cobirds] two different species tending one nest? Date: Sat, 6 Jun 2009 01:34:25 -0400 From: [email protected] At my friends' home this evening in Genesee, I couldn't believe it, but to a hole in the trunk of a Ponderosa Pine, there were both a pair of pygmy nuthatches and a pair of western bluebirds bringing food. The nuthatches were much more in attendance, but they would defer when the bluebirds would show up, and each bluebird would take a turn apparently disgorging food to nestlings in the bole. Could this be possible? I watched for at least an hour and a half, but I still can't quite believe it. Betsy Rumely What can an email address say about you? Find out here. _________________________________________________________________ Insert movie times and more without leaving Hotmail®. http://windowslive.com/Tutorial/Hotmail/QuickAdd?ocid=TXT_TAGLM_WL_HM_Tutorial_QuickAdd_062009 --~--~---------~--~----~------------~-------~--~----~ Colorado County Birding: http://www.coloradocountybirding.com/ You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.as/group/cobirds?hl=en -~----------~----~----~----~------~----~------~--~---
