LOUISIANA BIRD RECORDS COMMITTEE

REPORT FORM

     This form is intended as a convenience in reporting observations of species on the Louisiana Bird Records Committee (LBRC) Review List. The LBRC recommends the use of this form or a similar format when submitting records for review (to assure that all pertinent information is accounted for). Attach additional pages as necessary. Please print or type. Attach xerox of field notes, drawings, photographs, or tape recordings, if available. Include all photos for more obscurely marked species. When completed, mail to Secretary, Louisiana Bird Records Committee, c/o Museum of Natural Science, 119 Foster Hall, Louisiana State University, Baton Rouge, LA 70803-3216.

1. English and Scientific names: 

Rough-legged Hawk,  Buteo lagopus

2. Number of individuals, sexes, ages, general plumage (e.g., 2 in alternate plumage):

1 juvenile plumage

3. Locality: LOUISIANA: (parish)

Lafourche Parish

Specific Locality:

Fourchon Beach, 1st sighting on beach near Bell Pass, 29.08953,-90.21902, 2nd sighting  29.09613,-90.20402, which was about 1 mile east and just over dunes from beach.

4. Date(s) when observed:

November 28, 2012

5. Time(s) of day when observed:

10:40AM and again at 12:04PM

6. Reporting observer and address:

Dave Patton,

122 Memory Lane, Laf, La 70506

wdpatton@cox.net

7. Other observers accompanying reporter who also identified the bird(s):

Delaina LeBlanc

8. Other observers who independently identified the bird(s):

Don Norman reported seeing a similar looking hawk @2weeks earlier about 5 miles east.

9. Light conditions (position of bird in relation to shade and to direction and amount of light):

diffuse light from the south when looking east the 1st time and looking north the second time.

10. Optical equipment (type, power, condition):

scope, binocs, and 300mm photo lens

11. Distance to bird(s):

75 yards the 1st time and flying away from 200yards and followed in flight to about ¼ mile.

12. Duration of observation:

10 seconds the 1st time, and about 30 seconds as it flew off.

 

13. Habitat:

Sitting on large root clump on the beach and just over the dunes on grassy sand flats. The beach at this point has thick grass just over the dunes and some dunes are also well covered in grass. The flats extending to the north are small patches of open sand flats, thick short and medium grass, and lines of mangrove. This two mile stretch of Fourchon Beach is relatively quiet as compared to the east where a lot of heavy earth moving equipment runs up and down the beach.

14. Behavior of bird / circumstances of observation (flying, feeding, resting; include and stress habits used in identification; relate events surrounding observation):We road in a UTV from Hwy 3090 to Bell Pass to begin walking back to the east doing a PIPL survey. We may have seen it fighting with a Northern Harrier near Bell Pass, but did not get an ID from the moving vehicle. 1st sighting was resting on a washed up root ball clump on the beach ahead of us near Bell Pass. We put the scope on it and I saw it for about 5 seconds before it flew. I did not realize what it was until it flew and I saw the underwing pattern. It went quickly over the dunes to the north and out of sight. It was hard getting through the grass to an observation point, and it was not relocated.

2nd sighting was about 1 mile east as we continued walking the PIPL survey. We pushed a Peregrine Falcon ahead of us for about ¼ a mile. It flushed from the beach the last time and went over the dunes. We could see it making dives on something in the grass and then saw the RLHA take off. We ran to the top of the dunes and watched as it flew north and then west away from us low to the ground. It turned and banked in the wind several times giving good looks and photo angles. It dropped lower and disappeared below a distant line of mangroves about ¼ mile away.

15. Description (include only what was actually seen, not what "should" have been seen; include if possible: total length/relative size compared to other familiar species, body bulk, shape, proportions, bill, eye, leg, and plumage characteristics. Stress features that separate it from similar species):1st look through scope with it perched and facing away. Pale head with uniform light brown streaking on crown nape, and neck. Medium brown back with a few small white patches. Flew and I saw the white rump, white underwing, large black wrist patches. 2nd sighting was through binoculars as it flew off. White lower rump and base of the tail with dark terminal band. The back was medium brown,and upper wing medium brown with pale windows at base of inner primaries. Dark wrist patches seen on white underwing as it flapped. Most of description from this point on is from photographs taken continuously as it flew off. Dark solid patch on belly from pale chest to undertail. Base of legs heavily feathered by buffy feathers becoming lightly feathered along the leg, contrasting sharply with black belly patch. Tail white at the base with a thick, dark terminal band. Small white tips on the end of the tail feathers. The upper rump was solid brown with a sharp line of demarcation to the white lower rump/upper tail. Lower rump/upper tail was almost all white except for a few small black flecks. Back was medium brown with light flecking of white which was a little heavier along the sides. Head distinctly paler than the back with what looks like fine streaking. No obvious supercilary. Head evenly colored without obvious crown or throat marking. The eye had the look of a heavy brow extending a short ways behind the eye. Underwing very clean and white with light tawny shading seen in some photos. Large black patches at wrist and black tips on the primaries. See photos. 

16. Voice:None

17. Similar species (include how they were eliminated by your observation):

Other bureos. The most obvious markings of the underwing being mostly white with large black wrist patches. Black belly patch with contrasting leg feathering are distinctive to the Rough-legged.

18. Photographs or tape recordings obtained? (by whom? attached?):

Canon SLR with 300 mm lens by Dave Patton. Attached,all photos are cropped but at original resolution and not adjusted for color or contrast. Photos with some adjustments are posted on my website http://www.pbase.com/pattonpix/roughlegged

19. Previous experience with this species:

None

20. Identification aids: (list books, illustrations, other birders, etc. used in identification):

a. at time of observation:

None

b. after observation:

Sibleys, National Geo, Hawks In Flight

21. This description is written from: __yes___ notes made during the observation (_____notes attached?);_____notes made after the observation (date:_____); ___yes__memory. And photos.

22. Are you positive of your identification if not, explain:

Yes, looks good on all points. I see no reason to suspect a hybrid.

23. Signature of reporter:

Date:__11/30/12________

Time:__7AM_____

24. May the LBRC have permission to display this report or
portions of this report on its webite? Yes

If yes, may we include your name with the report?

Yes

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