English and Scientific names: |
Sulphur-bellied Flycatcher, Myiodynastes luteiventris |
Number of individuals: |
1 individual - Sex unknown. Appears from referencing Sibley guide to be juvenile bird. |
Locality: LOUISIANA: |
Plaquemines Parish |
Specific Locality: |
Sandbar at the mouth of North Pass, east side of the Mississippi
River birdfoot delta, approximate boundary between Pass A L'Outre Wildlife
Management Area and Delta National Wildlife Refuge (see attached maps).
|
Date(s) when observed: |
September 30, 2004 |
Time(s) of day when
observed: |
Approximately 0920 |
Reporting observer and address: |
William G. Vermillion USFWS 646 Cajundome Blvd., Ste. 400 Lafayette, LA 70506 |
Other observers accompanying reporter who also
identified the bird(s): |
|
Light
conditions (position of bird in relation to shade and to direction and amount
of light): |
Bird relatively well-lit; morning sun was behind observer. Perched on
Phragmites culm on the interface of Phragmites marsh and sandbar. |
Optical equipment: |
Zeiss 10 X 42B binoculars, ~
9 years old, good condition |
Distance to
bird(s): |
Approximately 40 feet |
Duration of
observation: |
Approximately 15 minutes |
Habitat: |
Edge of Phragmites marsh; adjacent to overwash sandbar to the south; Gulf of Mexico east and north (see maps). |
Behavior of bird: |
I was involved in an oil spill response
from 9/27 to 9/39, 2004. My duty was to
haze gulls, pelicans, terns, and shorebirds off a loafing area, an overwash
sandbar at the mouth of North Pass.
The north end of the bar was attached to Phragmites marsh. I approached the edge of the Phragmites
marsh, basically the interface between the marsh, the sandbar, and the open
gulf, and noticed a catbird-sized bird flush up from about 2 - 3 feet off the
ground and about 10 feet from me to about 6 feet off the ground and perhaps
30 feet from me. Bird flew from left
to right, away from me and towards the Gulf.
Was struck by the solid rufous tail.
Thought briefly catbird? Inca dove? but the rufous was on the dorsal
surface of the tail, and the bird was too large and bulky for an Inca dove,
plus no discernible wing noise as you often have with Inca doves. Had not yet made an attempt to glass the
bird with binoculars. Was distracted
by a couple of small passerines,! yellow warblers, then searched with binoculars unsuccessfully for the larger bird before walking slowly towards the area that I thought it had landed. As I approached that area, the bird flushed when I was about 20 feet away and flew west, landing on a Phragmites culm about 40 feet away on the edge of a section of hurricane-flattened Phragmites. That flattened section was between me and the bird, so I was able to see it well. Observed the bird for about 15 minutes. Most of that time it was perched so that I was looking at the right side of the face and body. Shifted body position slightly but mostly remained still Eventually I walked up about 10 feet and got a brief look from that distance, then the bird flushed about 20 feet south to another Phragmites culm. I then left the area to resume hazing other birds. I returned in about 45 minutes but did not relocate the bird, but I did not exhaustively search the marsh (see attached field notes). |
Description: |
Slightly smaller than a catbird; slightly larger and bulkier than a kingbird. Relatively large-headed. Tail fairly bright rufous above and below. Chest, belly, flanks heavily streaked with black. Belly and center of chest pale yellow, upper portion of flanks whitish. Streaking appeared heavier on the sides versus the center of the chest. Bill stout, dark, medium length, conical but not grosbeak-shaped. Black stripe through the eye, widening behind the eye and extending down the neck, black malar stripe, eye appeared dark, crown streaked with blackish/dark greenish?. Wings appeared rather mottled black-and-white. Noted a blackish blob, like an amalgamation of streaking on the bird's right flank adjacent to the wing. Back/nape/ streaked with black/dark green. Leading edge primaries darkest. Some white visible in wing feathers in the central part of the wing (see attached field notes). Leg color not noted. |
Voice: |
Did not call. |
Similar
species: |
Amount of rufous eliminated catbird after initial sighting. Streaking, bill shape, head pattern, size, body shape, large head eliminated Inca/ground dove. Bill shape, major amounts of streaking, belly color elimintated black-headed/rose-breasted grosbeak. Streaking and duller yellow belly color eliminated Kiskadee. |
Photographs
or tape recordings obtained? |
None |
Previous
experience with this species: |
None, only familiar from reviewing field guides. |
Identification aids: |
At time of observation: none After observation: Sibley's Guide to North American Birds, Peterson's Field Guide to the Birds of Texas |
This description is written from: |
Notes taken at time of observation (attached) and memory. |
Are
you positive of your identification? If not, explain: |
Yes. |
Reporter: |
William G. (Bill) Vermillion
|
Date and time: |
October 13, 2004, 1433 |