News and Information
Town of Kiawah Island
21 Beachwalker Drive
Kiawah Island, SC 29455
(843) 768-9166
NIGHTJAR SURVEY
The
United States Nightjar Survey Network is a new annual monitoring strategy, coordinated by
The Center for Conservation Biology,
to collect information on population distribution and trends of nightjars over large regions. Prior to this program, there was
no widespread, long term monitoring strategy to gather vital population information. Gaining an understanding on the precise magnitude
and scale of population changes are critical if we are to plot a course for conservation.
Nightjars are one of the most
enigmatic group of birds in North America. Very little is known about the basic aspects of their biology, habitat use, and population
status due to their cryptically nocturnal lifestyle. In recent years, conservationists have come to share a general sense
that populations of nightjars are dramatically declining. Kiawah Island is home to 2 species of nightjars during breeding
season; the
Chuck-wills-widow and
Common Nighthawk. A third species, the
Whip-poor-will, may pass through the island during
spring and fall migration.
The Town of Kiawah Island began participating in the United States Nightjar Survey Network in 2009.
The roadside survey is conducted at night when the moon is equal to or greater than 50% illuminated and above the horizon. The
survey consists of driving and stopping at 10 points along a predetermined 9 mile route. At each point, the observer counts
all nightjars seen or heard during a 6 minute period.
RESULTS OF THE 2009 AND 2010 KIAWAH ISLAND NIGHTJAR SURVEY
Nightjar Survey
|
SPECIES |
2009 (n=10) |
2010 (n=14) |
|
Actual # of birds |
Mean birds/survey |
Actual # of birds |
Mean birds/survey |
|
Common Nighthawk |
1 |
0.1 |
3 |
0.2 |
|
Chuck-wills-widow |
7 |
0.7 |
13 |
0.9 |