I currently am working with Sage Grouse. We are collecting
data to better understand the how the current population is doing. Because Sage
Grouse trapping is such a unique experience and people always ask, I figured I
would write it down.
Sage Grouse trapping is all done at night when the moon is
less than half full. We drive out to the study area a few hours after dark.
Once we get near the trapping area we stop and prepare the truck. We tape
speakers to the hood of the truck and hook up the spotlight and get all the
gear ready. We black out all of the lights on the truck. The only light that is
on out there is the spotlight and it is the only light available to the driver.
The speakers are used to blast Rock music into the night. It
covers the sound of talking and footsteps, which might flush the birds. But
more importantly they keep the trapping crew awake. The spotlight is used to
find the birds and also to confuse and blind them once we find them. The
spotlighter sits in a chair in the bed of the truck that sits up behind the cab
of the truck. They scan through binoculars with truck stopped to find the eye
shine of the grouse. The spotlight has been described, in my opinion; fairly accurately
as the Eye of Sauron. Once the spotligher spots a grouse the netters jump out
of the truck and grab their nets. The bird is usually some distance away and
the netters have to walk through the sage, rocks and dark with no headlamps.
Daniel Spotlighting for Grouse
As the truck moves closer to the bird the netters peel off
from the truck. The spotlighter keeps the spotlight on the grouse the entire
time. Once the truck is about 10 to 15ft from the bird the netter walks in from
the dark side and places the net over the grouse.
Once the bird is in hand we start to process it. We weigh
it, put a leg band on, age and sex it, and equip it with a GPS backpack or a
radio collar. Whether they get a GPS Backpack or radio collar depends on the individual
bird weigh. This process is pretty quick. Once done the bird is released off
behind the truck with all the lights off. The entire trapping process has been
likened an alien abduction with all the bright lights and added devices.
Hen Getting Radio Collar
Hen getting fitted for GPS Backpack
After finishing our trapping we have to track the birds and
get locations on them. We try to focus on hens during this period to determine
the nest success. That pretty much covers it. We can trap from a truck, ATV, or on foot with a backpack. I'll add a few more pictures following this.
ATV Trapping
Backpack Trapping
Me with a Sage Grouse Male
Hen Getting Fitted for a GPS Backpack
Hen with Radio Collar
Hen Getting Fitted for Radio Collar
Me with a Sage Grouse Hen
Two Sage Grouse Males on the Lek
Sage Grouse Male with Two Hens on the Lek

No comments:
Post a Comment