Monday 9 January 2023

[cobirds] 2nd monthly Winter Raptor Survey for HMANA, East of DIA

We completed our second monthly volunteer Winter Raptor Survey for HMANA (Hawk Migration Association Of North America) 2 days ago for the route from Rocky Mountain Arsenal NWR to Barr Lake, colloqually known as DIA Raptor Alley.  

With increasing winter weather, more interesting raptors have moved into the area from the North.

We saw and identified 104 Raptors which we categorized as to age, sex, morph when applicable and possible, for our report to the WRS website.

Ferruginous Hawk     16    

Rough-legged Hawk   9

Prairie Falcon              2

Bald Eagle                   40

Red-tailed Hawk         20

Northern Harrier         15

American Kestrel        2

These included a dark morph adult Red-tailed Hawk (likely Western subspecies calurus), as well as a dark morph adult male Rough-legged Hawk – both of which were spectacular and a moderately difficult ID as to species/age/sex.

Here is the link to a report of same route we ran last month:

Our 1st Winter Raptor Survey for HMANA in Colorado (google.com)

To see results of all the HMANA Winter Raptor Surveys in the country:

https://wrs.hmana.org/public_html/index.php

To get general information on HMANA's Winter Raptor Surveys in case you're interested in starting one yourself, and you're welcome to email me with questions:

https://www.hmana.org/winter-raptor-survey/

 

Ajit & Liza Antony

Central Park (Denver), CO

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