English and Scientific names:	Cave Swallow (Petrochelidon fulva)
Number of individuals:	5 adult birds
Locality: LOUISIANA:	Calcasieu
Specific Locality:	Nests were on the I-10 bridge that goes over the service road just east of the intersection of US 165 and I-10 in Iowa, LA.
Date(s) when observed:	May 31, 2010
Time(s) of day when observed:	11:45 am - noon
Reporting observer and address:	Jeffrey W. Harris Baton Rouge, LA
Other observers accompanying reporter who also identified the bird(s):
Other observers who independently identified the bird(s)
Light conditions (position of bird in relation to shade and to direction and amount of light):	bright and sunny; the birds flew continuously in and out of the shadows of the overpass, but they frequently landed on nests to tend young inside.
Optical equipment:	Alpen, Tetons 10 x 50 (brand new)
Distance to bird(s):	20 feet
Duration of observation:	15 minutes
Habitat:	suburban highway system; an overpass to shelter nests; some open fields and rice ponds nearby for foraging arenas.
Behavior of bird:	Birds were alarmed by my presence and initially flew constant circles.  Eventually, birds relaxed and landed on nests.  I saw adults reach into the nests and feed young birds. This location is good because it allowed a side-by-side comparison of Cliff and Cave Swallows.
Description:	The Cave Swallows all had beige colored throats without any dark smudges or bibs (that are seen in the Cliff Swallows).  The forehead was darker brown and not white as in the neighboring Cliff Swallows.  I also notice some whitish marks along the backs of the Cave Swallows that was not present in any Cliff Swallows. I was also able to listen and separate the voices of the two species by following specific birds as they called.  They also had squared tails.
Voice:	these birds tend to speak single notes (veet or weet) with little or no additional chattering; whereas, the Cliff Swallows tended to make jumbly phrases of many varied notes.
Similar species:	already mentioned the Cliff Swallow comparison. There were an additional 2 Barn Swallows in the mixture, but their long tails and distinct coloration were sharply different from the other two species.
Photographs or tape recordings obtained?	I made a video recording of some nests and adult birds.
Previous experience with this species:	I had never seen this species nesting before this experience. I had only seen the bird in flight on previous occasions (and usually mixed in with a variety of other swallows) at Grand Isle.
Identification aids:	Sibley, Peterson and Kaufman guides.
This description is written from:	Memory and re-examination of the videotape.
Are you positive of your identification? If not, explain:	yes
Date and time:	June 5, 2010