Hey, Steve. Here's more than you ever wanted to know about Chipping Sparrow demography in Colorado in the summer:
https://cobirds.org/JournalArchives/2010-2019/2011%20Vol%2045/CB_2011_45_3_Jul.pdf Scroll down to p. 181 for all the inviting details. Ted Floyd Lafayette, Boulder County P. s. Some recent bird sightings: Calliope and Black-chinned hummingbirds still at the feeders at Greenlee Preserve, Boulder County; gazillions of passerines and waterfowl at Windy Gap Reservoir, Grand County, Sept. 7; Sandhill Cranes, Type 5 Red Crossbills, and especially Evening Grosbeaks in Routt County, Sept. 4-6. On Tue, Sep 8, 2020 at 10:48 AM Steve Brown <[email protected]> wrote: > Hi again, > > I just thought of an interesting CHSP observation to share from this week > from Clear Spring Ranch. > > Early in August I was surprised that about 95% of the Chipping Sparrows I > was catching were adults, or at least After Hatch Year birds, with many > females with recovering brood patches. This continued for a couple weeks, > then things were about 50-50 in mid-August. > > Now I am seeing about 95% juvenile birds, with only about 10 adults this > week, with 350-400 juvenile birds. > > FYI. > > Steve Brown > Colo Spgs > > Sent from my iPad > > -- > You received this message because you are subscribed to the Google Groups > "Colorado Birds" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/cobirds/83EF7A45-F9EF-4508-AE95-0165B9686AC9%40gmail.com > . > -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/CAGk944fbC2Tcg6XtaPkj7gMJh%2BfGL9nTkrVJA3bM0PWgARzA0w%40mail.gmail.com.
