Steve and TexBirders, While it may very well be that the Gov’t Canyon Mocker is immitating a local sound, I’m sure you’re aware that Mockers also move around and disperse, often bringing their natal “dialect” and sounds with them. I wrote about a particularly vivid example of this that occurred on Balcones Canyonlands NWR in May 2010: http://www.friendsofbalcones.org/chucks/335519 That was a bird which uttered an amazing array of deep South Texas/Northern Mexico bird sounds which it could not have learned any closer than 250 miles from that Refuge. Chuck Sexton AustinEdit your Freelists account settings for TEXBIRDS at //www.freelists.org/list/texbirds Reposting of traffic from TEXBIRDS is prohibited without seeking permission from the List Owner