Date: 2/25/18 7:27 pm From: Jim Peterson <texasbirdimages...> Subject: [texbirds] Re: Dallas County, White Tailed Hawk
All: According to Bill, the bird is an adult Harlan's Hawk.
He didn't say why, and I won't bother him again on that subject.
Adult Harlan's are quite variable, both in the tail and body. I will say on many Harlan's sent to me, about 30% of the typical Harlan's have some odd white feathering around the lore and beak. I see that on this one. It is not really a diagnostic feature, but it is something I see frequently on Harlan's. Here's one from central Texas with that feature ( https://goo.gl/E6MVUg ). I also see what appears to be some white speckling on the breast, not a continuous coloring ( https://goo.gl/RVyHMD ). So I'm thinking Harlans just on first impression.
I cannot see the tail, which is extremely variable from white with irregular patterns of barring to a kind of a deep salmon pink or reddish. Usually on a Harlan's with a reddish tail, the barring is slightly irregular. I try not to make the call on ones with reddish tails unless the pictures are tack sharp. I'll send them to Bill if I have real questions. We can't see the tail in this image, but you mentioned it was reddish. That, in itself would not be diagnostic especially since this one seems to have some white speckling on the breast.
On Sun, Feb 25, 2018 at 5:12 PM, Christian Walker < <christian.walker...> wrote:
> Well check out https://www.flickr.com/photos/131603967@N04/ > 39588350255/in/dateposted-public/ > That’s my photo of what I think is the calurus. I’ve seen this bird here > before in the exact same spot on parkinson road; it has a bright red tail > and is warm brown (instead of black-brown) on most of the body. > I’m no raptor expert, perhaps y’all can weigh in. Of course this photo > only really shows the body color, and so may be worthless for reliably > identifying it to subspecies. > > > On Feb 25, 2018, at 5:03 PM, Jim Peterson <texasbirdimages...> > wrote: > > All: > I feel certain that this the first Dallas County White-tailed Hawk. The > last two years have turned the status of this bird on it's head for > north-central Texas (as well a Harris's Hawk). > > And, perhaps more oddly, had you photographed the western calurus, it would > have been the first photo-documented record of that subspecies that I know > about for this county. Raptor expert Bill Clark once told me that of all > the photos of potential calurus in North-central Texas, every one had been > a Harlan's. He lives in Texas and he's never seen one in North-central > Texas. > > Jim > > On Sun, Feb 25, 2018 at 3:15 PM, Christian Walker < > <christian.icapadjuster...> wrote: > > This is the first Dallas County record, I understand. The Hardways and I > were birding the area hoping for Short-eared Owls and possibly a > Rough-legged Hawk, with no luck, but enjoyed the cornucopia of Red-tailed > Hawks in the area, including 1 Harlan’s, 1 immature Krider’s, and 1 western > calurus. Regarding the White-tailed Hawk, we actually had it perched only > two telephone poles out into the field, but didn’t recognize it because > it’s back was turned. We wrote it off as a weird Red-tailed with long wings > (projecting past the tail - this should have been a big red flag) and not a > lot of color in the cere. When we returned back along Wolf Springs Road it > had turned around and we were able to see the white breast and immediately > thought Harlan’s, but as soon as we got it in the scope we noticed the pure > white breast, and distinct belly band. When it flew down the ground we saw > the grayish tail with black subterminal band, and bits of white rump > feathers coming in. At that poin > t we called Chris Runk, and other birders were able to see this bird. > The Hardways continue to be an epicenter of good birds - we went on to > find 91 species for the day including Horned Lark, over 100 Cackling Geese, > Vermilion and Scissor-tailed Flycatchers at Southside, and the American > Black-Duck and Lesser Black-backed Gull at White Rock. > > Good birding, > > Christian Walker > > On Feb 25, 2018, at 8:59 AM, Bryce Hardway <brycehardway21...> > > wrote: > > > Hey all! > On Wolf Springs Road, north of the Sod farm office, we have a juvenile > White Tailed Hawk. We have some pictures of It. It’s been frequenting the > 3rd and 4th telephone poles. It looks to be molting from 1st to 2nd year. > > Good birding, > Bryce > Seguin, TX > > 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 > > > > Christian Walker > <christian.icapadjuster...> > Independent Adjuster > Irving, Texas > (512) 745-3227 > > > > 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 > > > > > > -- > If the photographer is granting permission for use, please include the > photographer's full name, the date, and the county in which the image was > taken. Texasbirdimages generally does not to crop any images, but some > exceptions are made. All images will be "optimized" for web viewing in > order to reduce the byte size. See the "Terms and Conditions" at the > texasbirdimages.com website. > > 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 > > > > Christian Walker > Independent Adjuster > Irving, Texas > (512) 431-2495 > > > >
-- If the photographer is granting permission for use, please include the photographer's full name, the date, and the county in which the image was taken. Texasbirdimages generally does not to crop any images, but some exceptions are made. All images will be "optimized" for web viewing in order to reduce the byte size. See the "Terms and Conditions" at the texasbirdimages.com website.