Calliope HB’s

[Peter Hark]

Summit County, 9 miles north of Silverthorn.

We had a male Calliope Hummer at the feeder on the 7th of this month. Just here for a day.
I was wondering if anyone could shed some light for me on fall migration time lines. Is this a typical time period for male Calliope migration for this area?

Thanks,

Peter Hark




Sent from my iPhone

[Jeff P]

They should start passing through Colorado mid-July and will dissappear around mid-September with outliers on either end. I may have seen one in Erie (SW Weld) on July 8 a few days ago, but didn't have any bins or camera with me so wasn't confident enough in the id to report it, and I haven't detected one since. Looking at prior years July 20 is the earliest I've had one, but would expect you might get them earlier than me. They love to hang out in my yard in the fall at the hummingbird trumpets and sunset hyssop I planted a few years ago -- they prefer those much more over the humming bird feeders.

In ebird on a species account you can set a region and it will show the monthly bar chart, which it looks like your little dude is right on time for early birds coming through-- which this has been an early sort of year for a lot of things it would seem. https://ebird.org/species/calhum/US-CO

Ebird also has a really cool status and trends that depicts week by week distribution and you can animate it.

https://science.ebird.org/en/status-and-trends/species/calhum/abundance-map-weekly?week=28

-Jeff

Erie, CO 

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[Wayne and Robin Jasper]

We had a male Calliope Sunday the 12th at our Allenspark cabin (8500 ft, Boulder County). 

Robin Jasper

Sent from my iPhone

On Jul 15, 2026, at 6:35 AM, Jeff P <jeff.p...@gmail.com> wrote:



They should start passing through Colorado mid-July and will dissappear around mid-September with outliers on either end. I may have seen one in Erie (SW Weld) on July 8 a few days ago, but didn't have any bins or camera with me so wasn't confident enough in the id to report it, and I haven't detected one since. Looking at prior years July 20 is the earliest I've had one, but would expect you might get them earlier than me. They love to hang out in my yard in the fall at the hummingbird trumpets and sunset hyssop I planted a few years ago -- they prefer those much more over the humming bird feeders.

In ebird on a species account you can set a region and it will show the monthly bar chart, which it looks like your little dude is right on time for early birds coming through-- which this has been an early sort of year for a lot of things it would seem. https://ebird.org/species/calhum/US-CO

Ebird also has a really cool status and trends that depicts week by week distribution and you can animate it.

https://science.ebird.org/en/status-and-trends/species/calhum/abundance-map-weekly?week=28

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To view this discussion visit https://groups.google.com/d/msgid/cobirds/CAARWy%2Bi%3D%3D8GWzDeBHbYGLByYn4rsVhj7oSo6e2szPebYwbb25w%40mail.gmail.com.