English
and Scientific names: |
Lesser
Nighthawk (Chordeiles acutipennis)
|
Number
of individuals: |
1 female |
Locality:
LOUISIANA: |
Cameron Parish |
Specific
Locality: |
“Rutherford Oaks” a.k.a. Oak Grove |
Date(s)
when observed: |
10/17/2009 |
Time(s)
of day when observed: |
Late afternoon, ca. 5:00-6:30 |
Reporting
observer and address: |
Paul Conover Lafayette, LA |
Other observers
accompanying reporter who also identified the bird(s): |
Mac Myers, Lainie LaHaye |
Other observers who
independently identified the bird(s) |
none |
Light conditions
(position of bird in relation to shade and to direction and amount of light): |
Good late afternoon light, bird forelit. |
Optical
equipment: |
Zeiss 10s, Nikon Fieldscope III 20-60, Nikon D50
with 200 mm. |
Distance
to bird(s): |
About 20 yards at closest. Most viewing at 50
yards or so. |
Duration
of observation: |
Scattered sightings over about 1.5 hours. At
times, perched bird was observed for 20 minutes or so at a time. |
Habitat:
|
Oak-dominated woods with heavy understory
surrounded by marsh to south and pastureland to north. |
Behavior
of bird: |
Perched except when flushed. In flight, glided
from perch to perch with much flapping except when it would ascend. Bird seen
well in flight from all angles as I glided to a perch, banked, fluttered, and
redirected. We flushed this bird 6 times, working with it for
quite a while to get definitive looks. |
Description: |
A nightjar with white ‘nighthawk mark’ (alula?).
Overall color pale grayish-brown with few distinct markings. Perched bird with primaries concealed. Throat appeared to have buffy ground color but was
heavily mottled with darker brown. Thin line of pale buffy along lower edge
of auriculars. Underparts pale brownish with darker brown
transverse bracket-shaped bars, about evenly barred dark and light. Underwing
coverts and axillars similarly barred. Undertail coverts rich brown barred with
dark brown, dark bars more widely spaced than on vent area. Upperparts mottled with gray, brown, and buff.
Buff tips to mantle feathers formed distinct V. Buff tips to wing coverts
formed two weakly marked buff wingbars. In flight, wings with 3-4 bands of pale buff spots
proximal to a more distinct buffy-whitish band crossing the primaries. These
rows of buff spots ran parallel to the wing band. Tail evenly bared dark brown on buff, with no
white or buff tail band. |
Voice: |
not heard |
Similar species: |
A nighthawk by white alula, wing band. Common Nighthawk eliminated by amount of buffy
spots on primaries. |
Photographs or tape
recordings obtained? |
Photos, video. |
Previous experience with
this species: |
Seen out west a few times, seen once before in LA,
I have studied many skins at LSUMNS over the years, and many pictures. |
Identification
aids: |
|
This
description is written from: |
Memory, photos. |
Are you positive of your
identification? If not, explain: |
Yes. |
Date
and time: |
November 3, 2009 |