Leon and all, In response to seeing fewer Rufous Hummers, I'd add that Rufous have declined in the core of their breeding range 2.0-3.4% PER YEAR (at a state/province scale) since 1968. This is about a 63% decline overall. The declines are from analysis of Breeding Bird Survey data. These are significant long term declines!
Another species that has declined about 2% per year since 1967 (59% overall decline) that is starting to get attention from conservation organizations/agencies, and it'll draw some pause for everyone in Colorado, is Broad-tailed Hummingbird. Really! CO supports more broad-tailed hummers than any other state, by a large margin, with about 44% of all breeding birds (also based on Breeding Bird Survey data). On that note, I had an immature Rufous in my yard in Littleton, JeffCo, this morning. It was the first one I've seen this summer. I've had a couple Calliope's over the last 3 weeks and black-chinned come and go. The adult male Calliope last week didn't stay long, but he was a stunner! Good birding, Scott Somershoe Littleton CO On Wed, Jul 15, 2020 at 10:04 PM Leon Bright <[email protected]> wrote: > COBirders- > > Continuing the hummingbird thread, at our cabin in the Sangre de Cristo > range we are now feeding over 40 Broad-tailed hummingbirds. Their number > has been recently augmented by fledglings. We have 6 or 7 Calliopes, which > is several more than normal, and only 3 Rufous who are not very aggressive. > Normally by now we would have at least double that, doing their best to > guard the eight feeders against all other hummers. > > Leon Bright, Pueblo (sometimes) > > -- > 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/005201d65b26%241fbd8fd0%245f38af70%24%40comcast.net > <https://groups.google.com/d/msgid/cobirds/005201d65b26%241fbd8fd0%245f38af70%24%40comcast.net?utm_medium=email&utm_source=footer> > . > -- 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/CAJmtx%2BV2gfMCv-2MqM90_sJP%3DhyPxEeYpKambD4aVS4pvO_jnw%40mail.gmail.com.
