Re: [cobirds] Denver Urban CBC - ducks in Denver

South Platte Renew (Littleton Englewood Wastewater Treatment Plant) discharges their treated effluent into the South Platte just upstream from the Grant Frontier Park. Like Metro Wastewater Plant and the Centennial Wastewater Treatment Plant, they provide warm water in the winter that can keep many kinds of birds happy. The Pine Warbler and Northern Parula that stayed below Chatfield Dam last winter come to mind.

Mitchell Bailey,

Los Angeles County

On Thu, Jan 6, 2022, 12:43 AM 'Hugh Kingery' via Colorado Birds <cobirds@googlegroups.com> wrote:

     Urling & I surveyed the southern section of the South Platte on the Urban CBC today. A plethora of ducks!

    We counted 466 Shovelers, 225 Mallards, and, the best, 160 Buffleheads. 12 duck species. They included one striking male Barrow's Goldeneye, located just south of Florida Ave.

    One observation/question. Ducks packed the river from Florida south to Grant Frontier Park; north of Florida we saw only smaller groups. One section to the north had ice across it. So: why the difference?

    Could water quality of the river change there?

    Or does the water get colder than the ducks prefer?

Or does something else affect their preferences?

Hugh Kingery

--
--
You received this message because you are subscribed to the Google
Groups "Colorado Birds" group.
To post to this group, send email to cobirds@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/cobirds?hl=en?hl=en
* All posts should be signed with the poster's full name and city. Include bird species and location in the subject line when appropriate
* Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/
---
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 cobirds+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/1318464605.1285487.1641426224770%40mail.yahoo.com.

--
--
You received this message because you are subscribed to the Google
Groups "Colorado Birds" group.
To post to this group, send email to cobirds@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/cobirds?hl=en?hl=en
* All posts should be signed with the poster's full name and city. Include bird species and location in the subject line when appropriate
* Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/
---
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 cobirds+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/CA%2BNZBPKW0zc8mgZ%2BJpptNFrOZbnhKfNPp%2BR%2BYd94ATdzt9%2BAKg%40mail.gmail.com.