Date: 3/4/18 8:08 pm From: Keith Arnold <kbarnold2...> Subject: [texbirds] Re: Dallas County Red-tailed Hawk
Harlan's Hawks are extremely variable, just like your "typical" Red-tails. I am currently preparing an adult bird that seemed odd to me, so I sent photos ( and a critical tarsus measurement) to Bill Clark; Bill has studied the Harlan's Hawk popula-tions at length. He confirmed that "my" bird was, indeed, a Harlan's Hawk.
If anyone would like to view the photos of this, I'll post them on Texbirds.
Keith Arnold Bryan/TAMU
Sent from my iPhone
> On Mar 4, 2018, at 6:49 PM, Ken Hartman <kahartman...> wrote: > > Christian - I took a look at your photos, and I'm gonna have to disagree > with you. All the Harlan's Hawks I've seen (or seen photos of) have white > tails with no red in them, and no rufous on the breast. Really there is no > rufous or red on them anywhere. Your bird with the rufous breast and red > tail looks like an intermediate Western Red-tailed Hawk. The second edition > Sibley Guide has great drawings on pages 138-139 that show this. Also a > photo page on Harlan's at: http://www.schmoker.org/BirdPics/HRLH.html > > > Ken Hartman > > Houston, TX > > > > > > Hey there, > > > I had a job in SE Dallas county this morning, and convinced myself to run > down to the same area to try to re-find the Red-tailed Hawk I had seen and > photographed yesterday, and hopefully get some better pictures. > > > > > > I was successful in re-finding this bird near the farm houses on Parkinson > Rd just north of Nokes Rd. I was very lucky to get some digibinned shots of > it in flight, as well as some digiscoped shots of the bird shaking its > plumage showing the upper side of the tail. Over the course of about 45 > minutes it remained within a 1/4 mile of this area, soaring and perching, > and interacting with several other Red-tailed Hawks in the area. Both the > other regular HarlanTs Hawks were seen in the area as well. > > > > > > See the pics I was able to get in this album: > <https://www.flickr.com/photos/131603967@N04/albums/72157693902358945> > https://www.flickr.com/photos/... > > > > > > I believe that this is a HarlanTs Hawk and not a calurus Red-tailed Hawk. > Specific marks that are characteristic of Harlan's Hawks are the white > streaking on the face (especially near the right eye), some white speckling > on the underparts, and the white base to the body feathers (visible in the > photo of the bird shaking it's plumage). > > > > > > Also, I was not able to re-find the White-tailed Hawk. > > > > > > Christian Walker > > > Independent Adjuster > > > Irving, Texas > > > (512) 431-2495 > > > > > > > > Edit your Freelists account settings for TEXBIRDS at > http://www.freelists.org/list/texbirds > > Reposting of traffic from TEXBIRDS is prohibited without seeking permission > from the List Owner > > Edit your Freelists account settings for TEXBIRDS at http://www.freelists.org/list/texbirds
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