Frank Boston sent me the following pictures on May 8, 2007 asking for help
identifying it.
I posted a query on OKBirds and the responses, through June 30, are included
below
|
Date: Fri, 29 Jun 2007 00:24:44 -0500 One of our members sent me a photo of a dead warbler that hit a window that he could not ID, and I'm not sure what it is either. If anyone would like to see it and perhaps take a stab at Identifying it, the picture is at: http://www.tulsaaudubon.org/unknown-bird.htm Thanks,
Date: Thu, 28 Jun 2007 22:38:26 -0700 (PDT) Black-throated Blue Warbler - female?? My best guess and a guess it is. Matt OKC
Date: Thu, 28 Jun 2007 22:47:41 -0700 Well, I will take a stab and say that in my opinion
it looks like a female painted bunting.
Date: Thu, 28 Jun 2007 22:51:27 -0700 I'm not real familiar with the ventral coloration of PABU's all together male ore female, does anyone else have an opinion. Date: Fri, 29 Jun 2007
05:17:16 -0500 John, looks like a painted bunting female to me too... we had one hit a high line wire out back a couple of years ago.... after a minute in the retriever's mouth and two in my hand, she sat on the lowest limb of a cedar for another three of four and then felt up to flying away. She hit that line hard though....
Polly O'Malley Date: Fri, 29 Jun 2007
06:42:18 -0500 how 'bout a Tennessee Warbler??
sebastianpatti@hotmail.com Date: Fri, 29 Jun 2007
06:16:33 -0700 I like guessing games also. I'm thinking the bill
is not thick enough for a female painted bunting. I believe I see a
warbler bill with a wet, faint, thin eyebrow and considering the under
tail coverts of white with what could be very pale wing bars, my guess
is female tennessee warbler. Thats my guess and like Eric-convince me
otherwise. Date: Fri, 29 Jun 2007
08:41:37 -0500
Jim Ingold Date: Fri, 29 Jun 2007
13:49:40 +0000 I'd have to agree with Sebastian. The beak is definitely a warbler beak not bunting, besides the beak is all black and bunting beaks don't have black lower mandibles. It's a little mangled but there is a yellow supercillium and definitely white undertail coverts. I would call the bird a very late female Tennessee Warbler. Jeanette Bider, PhD | Ornith-L
Listowner Date: Fri, 29 Jun 2007
09:22:04 -0500 Could be Orange-crowned Warbler as well. Doug. Date: Fri, 29 Jun 2007
07:44:16 -0700 (PDT) I don't think it is a Painted Bunting. It looks like a warbler bill to me instead of a bunting bill. Also, it appears to have white undertail coverts and white in the wing to indicate a hint of wingbars, which would rule out Painted Bunting. It's difficult to tell about the eye and face because of the ruffling of the feathers. Also, you can't see the breast or belly. Could it possibly be a Pine Warbler or Tennessee (Stokes Field Guide to Warblers, p. 146-147)? As you can tell, I don't really know, but that's my best guess. Jana Singletary
Date: Fri, 29 Jun 2007 08:10:02 -0700 Hi John, When was the picture taken? The bird has a pointed bill, green upperparts, no wingbars yellowy throat and superciliary and white under-tail coverts. CHEERS, JOE Grzybowski Date: Fri, 29 Jun 2007
08:25:25 -0700 I think Mr. Patti is right on the mark. Even the bill is warbler-like...and all the other marks match up, including the yellowish eyebrow and green back. At least if you are looking at Sibley's description and picture. Vicki Hatfield in Grove, OK Date: Fri, 29 Jun 2007
08:56:05 -0700 Dennis, Taking your warbler id into consideration, I think it is important to look at where a Tennessee Warbler might be at the moment, which would be the far north boreal forest. Of course not all birds read books as we all know, so I suppose there could be a miniscule chance of one lingering this late. The date guide has the 25 of May as being the late date for these birds and Sept. 13 as the arrival for the fall. So if you are correct Dennis, its a pretty good record. That said. I don't see any hint of a faint eyebrow, in fact the coloration surrounding the eye looks consistant with that of its cheeck which is a pale yelllowish-green. If this was a TEWA (Tennessee Warbler) I don't think there would be a question as to whether or not there was a supercilium of some kind. I still am very uncomfortable with using the bill as a que, so I am just going to leave that out. You are right about the white under-tail coverts, which is consistent with the description of TEWA's in birds of north-america, unfortunately I still have not found a good description of a PABU's (Painted Bunting) under-tail coverts, maybe someone else could jump in with that. I think that is all I have at the moment, anyone else? Eric Date: Fri, 29 Jun 2007
11:02:12 -0500 This has been interesting! I received the picture on May 8, but don't know the date it was taken. So it is definitely not a June bird. The bird struck a window at a home near 71st and Harvard in south Tulsa.
Thanks, Date: Fri, 29 Jun 2007
09:05:15 -0700 You know, I just assumed that this was a recent picture. If in fact it was from last month I might have to reconsider (maybe). Eric Date: Fri, 29 Jun 2007
09:26:00 -0700 Well I will have to say that it sounds like I may have been wrong. Which would be the first time, ever!!! Okay my wife wouldn't agree with that statement, but this has certainly been an interesting conversation, which has taught me a good bit. Thanks. Cheers, Eric Date: Fri, 29 Jun 2007
15:54:55 -0400 On Fri, 29 Jun 2007 09:22:04 -0500, you wrote: >Could be Orange-crowned Warbler as well. An Orange-crowned Warbler would not have pure white undertail coverts. I have to concur with the others who suggested Tennessee Warbler as the best match, although I also find it odd that a spring bird would have that much yellow on its face. One of the "wingbar-less" vireos is also a possibility, but I think they are all eliminated by the brightness of the green back--only a Yellow-green Vireo has a back that is that green, and it is eliminated by other features, such as the pure white undertail coverts. Painted Bunting fails to match on a number of characteristics. The undertail coverts would be dingy greenish, not white, and the tail is much too short. All _Passerina_ buntings have a mandible that is very wide at the base, with sort of a "bulging out at the sides" appearance, and a maxilla that is much narrower and sharply pointed. This bird has mandible and maxilla that are comparable in size. (This characteristic of _Passerina_ bills is generally not apparent in field guide illustrations, but is obvious when you view a bird head-on.) -Steve Date: Fri, 29 Jun 2007
14:57:35 -0500 OKbirdsters - If the photo was taken May 8, I'll guess Tennessee. If it was taken this week I'll guess Blue-winged! Good birding, Larry H. Joplin MO. Date: Sat, 30 Jun 2007
09:43:11 -0700 One of the "wingbar-less" vireos is also a
possibility, but I think they I have always liked bills as characters, because they vary much less than plumage characters, and are more consistent between age and sex classes, and seasons. In Vermivora warblers (Tennessee, Nashville, Orange-crowned and others), the upper and lower mandibles [sometimes referred to as maxilla (upper) and mandible (for lower)] match to come to a sharp-pointed tip. The culmen can curve barely. [This is true in most icterids (orioles, meadowlarks and RWBLs for sure), except that the culmens can be very straight.]. In Dendroica warblers (like Yellow, Chestnut-sided, Magnolia, Blackpoll etc.) , the lower mandible is a little shorter than the upper, and there is a slight overlap of upper over lower. Still a pointy bill, but not coming to a sharp point. In vireos, the bills tend to be more bunt, with more obvious arch and overlap of upper over lower mandibles at the tip. On a closeup, you can often see a "tooth" [serration] just behind the tip of the upper mandible. CHEERS, JOE Grzybowski Date: Sat, 30 Jun 2007 20:31:37 -0400 On Sat, 30 Jun 2007 09:43:11 -0700, you wrote: >I have always liked bills as characters, because they vary much less >than plumage characters, and are more consistant between age and sex >classes,and seasons. I supposed I should have mentioned this.... I was going to point out the bill characteristics, but after searching online for photos of Philadelphia Vireo bills for comparison, I decided that I couldn't make a convincing argument. The image of this bird's bill just isn't good enough; if you try hard enough you can imagine a bit of a hook at the tip, and the relative bluntness is hard to convey without a side-by-side comparison. -Steve Date: Mon, 02 Jul 2007 00:07:31 -0500 I would concur with the Tenn. Warb. id...as indicated, the bill, undertail coverts, upperparts, wings, etc. all look like Tenn, furthermore the short tail is quite distinct in these images, helps distinguish from Orange-crown. It might be a non-breeding female that was hatched last year, I believe first yr females can be quite bright, but also explain the lack of features normally seen on the head (though the condition of the bird doesn't help much). I don't recall when the bird was found...but noticed a mention of spring dates for OK in May (late)...but I believe it's not uncommon for this bird to be somewhat regular in June during certain springs throughout the midwest, assuming one can consider OK/Great Plains as part of midwest, this simply could be a late migrant. Gene Date: Wed, 04 Jul 2007 08:15:57 -0700 Howdy, In many songbirds, this can be determined by examining the primary coverts and comparing the edges and tones of these feathers with those of the greater coverts--those covering the bases of the secondaries. Because juveniles go through an incomplete molt into their first winter plumage [i.e., they don't molt all their juvenile feathers], they retain some juvenile feathers that they keep until the following spring and summer, and these tend to be browner and be more worn [have more tattered edges] by the following spring than the ones they did molt. So primary coverts could be browner, with more worn tan edges, while greater coverts will be darker toned with greeny edges. In the first picture, the primary coverts appear more like the
greater coverts, but in pic 2, where the wing is spread out, one can see
a diference in tone, with the primary coverts appearing to have tan
edges. Great to have pics. CHEERS, JOE Grzybowski
|