Bill (and anyone else who might be interested)—
You asked, "Great Egret is only listed [in the BBA] as having bred along Boulder Creek 8 miles East of Boulder. Is this still the case? 1998 was a long time ago now and the data was from a few years before that at least."
You can access the mapped data from the 2nd Breeding Bird Atlas here: http://bird.atlasing.org/Atlas/CO/. Click on the "view results" tab at the far right. Select a species from the drop down box and click "go." The basic map that is the default seems less useful to me because it's broken down by the Regions, so I switch to "map" and then zoom in to see more detail. If you do that for Great Egret, you'll see that the few confirmations stretched from Longmont to east of Greeley, with a handful of "Possibles" and "Probables" scattered around that line.
You also asked "Also any idea on when the COBBA2 is going to be published?"
I'm one of a small group of folks working toward the final version of the 2nd Colorado Breeding Bird Atlas. Our editing subgroup is currently in the final copy-editing and reference citation management stages. Hard to estimate how long finishing that process will take (frankly, I don't want to ask), coupled with all of the layout tasks. But things are moving along, thanks to the gracious, good-natured, and extremely competent coordination of the myriad pieces by Lynn Wickersham. People can now pre-order the Atlas at http://www.cobreedingbirdatlasii.org/book.asp. If your 1st Breeding Bird Atlas is as dog-eared and binding-broken as mine is, you'll want to get the new one ASAP.
Tina Mitchell
Lakewood, CO
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