Crane Migration Update: April 18, 2008
Today's Report Includes:
Migration : Map, Data and Highlights >>
Reports: Cranes on the Move! >>
Journal Question: How
Long on the Wintering Grounds? >>
- Nesting News! Six Wisconsin Nests >>
This Week's Crane Resources >>
Eva's camera lens: #706, #712, #713. But where are they today?
Eva Szyszkoski, ICF
Migration: Maps, Data and Highlights
Flock: The first cranes have reached Saskatchewan!
A flurry of sightings have been reported in the U.S.
Martha Tacha (USFWS) reports six
confirmed sightings in the Dakotas
along with a few new sightings in Nebraska and Kansas.
April 14 this missing crane showed up at the same Indiana
farm where 5 DAR birds had been since March 21! Which
Flock: More than half the flock are home,
and the remaining 20 cranes from the Class of 2007
their way north.
In Wisconsin, the week's big excitement has been
nesting by six adult pairs!
Cranes Have Reached the Finish Line? See
the list: >>
Field Reports: Cranes on the Move!
"This is #716, 717, 721, 724 and 726 in Jefferson
County, WI. They are fighting with a sandhill crane.
a couple minutes, they all settled down and began to forage."
Szyszkoski, ICF Tracking Intern
Tom Stehn's and Brian Johns' reports
Sara's, Eva's, Colleen's and Anna's reports
Flock Report: Whoopee!
birds being in south-central Saskatchewan on April 15, I
suspect that the first birds to arrive in Wood Buffalo National
Park will be there early next week," reports biologist Brian
Johns in Canada." Tom
Stehn has news from Texas.>>
Flock Report: So far, at least 43 of the flock's
74 cranes are confirmed
back in central Wisconsin, including two of the twenty-two
2007 cranes — ultralight-led
and DAR (Direct Autumn Release). Sara, Eva,
bring news of individual cranes and their jobs as trackers.
Why is spring a crazy time of year for
Whooping Cranes? >>
Question: How Long on the Wintering Grounds?
April 4, #709 became
the first of the Class of 2007 to complete migration to Wisconsin.
He was among the first to leave Florida on March 25.
- In how
many days did he complete his journey north?
many days did #709 spend on the wintering grounds? (The Class of
2007 arrived in Florida January 28, 2008.)
- In the
flock's 7-year history, how does #709's time on the wintering grounds
compare with other first cranes
to depart on spring migration? See
responses in your Journal. >>
#709 was located in Wood County, Wisconsin during an aerial search by Richard
Colleen then located him
in a cornfield
with 2 Sandhill Cranes. "He seems to be doing well, and he even
has his adult plumage now," reports Colleen.
Colleen Wisinski, ICF
News! Six Wisconsin Nests
knew of three nests for sure, but there are some places on the refuge
that are hard to
get to, so Richard Urbanek (USFWS) did
a survey flight on April 14 to see where the nests are. He found 6
nests (not including #310 and W601’s “practice” nest)
on the refuge and one potential nest off the refuge. Still another
pairs may nest this year. It would be
a very good year if even half of the nests produced a chick that survived
to fledging! It takes about 30 days of incubation
before an egg hatches. If things go well and the adults are good parents,
we could have some new crane chicks in early May." Colleen
Three of the six active nests to date are shown on
this map of Necedah NWR in Wisconsin. Will chicks be hatched? Everyone
Photo Richard Urbanek, ICF
Week's Crane Resources
- Flock History:
Eggs Become Eastern Flock's First Chicks! >>
#727 on Her First Journey North, by Anna Fasoli >>
Report: #524 is Found! by Sara Zimorski>>
the Expert: Read Laura's Answers! >>
- Numbers: Whooping
Crane Population Totals as of March 31, 2008 >>
- Connections: Three
White Cranes, Two Flyways, One World >>
- Overview: The
Whooping Crane Migration Study >>
the unison call. See
how his head is thrown back as he calls. (Click to enlarge.)
Colleen Wisinski, ICF
Next Whooping Crane Migration Update Will Be Posted on
April 25, 2008.