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2-12 Oct. Sanford is on the move, and may already be done with
migration!
He wasted no time in getting to Cuba, and then, after
waiting out some bad weather, threw a curve ball at us and snuck in the
back door to the Bahamas.
I'd be really happy to see him spend the rest of the
winter right there, after the bad luck we've been having getting birds
across the Caribbean.
Scroll down for some maps of his summer movement (although most of this
is over on Gunny's map), or
Jump ahead to the start of migration. |
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The first week: 7-14 May. I've plotted Gunny and Sanford's data
together so we can compare their foraging ranges.
Just like last year, early in the season the Osprey are
feeding heavily on the herring run on the upper reaches of the East
Branch of the Westport River. |
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15-21 May 2010: Both birds are still
working the East Branch, but both birds are wandering a bit. |
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15-21 May 2010: Pretty much the same thing this week. |
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7-28 May 2010: Here are three weeks' locations for all three
adult males we're following this spring. All three are travelling about
the same distances from their nests. Their foraging ranges are about 10
mi (16 km) across. |
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29 May-4 June 2010: The herring run on the East Branch is clearly
over. Both Gunny and Sanford are mostly working freshwater ponds
this week.
From here on for the rest of the summer, see
Gunny's map page. |
Until Gunny and Sanford
migrate, I'm posting joint maps for both over on Gunny's page. |
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2-3 Oct 2010
Sanford is migrating. He started off with a lazy 60 mile day,
following the coast westward into the oxymoronic Connecticut.
He cranked it up a bit on the 3rd, making it through
six states (not too hard to do when Delaware and New Jersey are in the
mix) and covering 333 miles (536 km).
He crossed the Chesapeake between 5 and 6 PM on the
3rd. |
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9 May-4 June 2010: Favorable winds have kept him going long and
hard over these two days. It's unusual fpr a bird to leave the South
Carolina coast and cut off a bit of the Georgia Bight. Typically, we see
this out of birds that get to Cape Lookout or Cape Fear. Most birds that
find themselves on the South Carolina coast stay over land all the way
to Florida. |
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5-8 Oct 2010: Sanford made landfall in Florida about 10:30 PM on the
evening of the 5th. He would have hit the coast a bit northeast of
Orlando.
When his GPS turned back on at 10 AM on the 6th, he was
pretty far south, which suggests that he didn't stop migrating as soon
as he arrived on the coast, but pushed on a bit before resting.
He was a bird on a mission, and kept right on down the
coast and on to Cuba, where he arrived just before 7 PM. |
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8-10 Oct 2010: He spent a couple of days around these two
reservoirs, waiting for the weather to change. |
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6-12 Oct 2010: After five days moving east through Cuba, Sanford
threw a real curveball at us, heading north into the Bahamas on the
12th. We've never seen a bird to this before. Although we know Ospreys
overwinter in the Bahamas, none of the birds we've tagged has. The only
birds we've had even pass through the Bahamas have been juveniles
arriving from the north after 50-60 hour flights over the Atlantic.
Did he get blown up here by the incoming hurricane? I'm
pretty sure he moved a couple of days before the storm got to Cuba.
It will be really interesting to see if he stays there
or continues south.
Stay tuned!
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8-12 Oct 2010: Sanford arrived on Andros Island at 4 PM on the 12th
and settled right down. |
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12-18 Oct 2010: This really has the feel of a bird that has arrived
on his wintering grounds. After a very directed flight, he settled down
in a pretty restricted area and hasn't wandered much over six days.
If this is his wintering grounds, it would seem to be
about as safe a spot as one could hope for. It's a pretty remote area
with no signs of humans nearby, lots of shallow water--perfect for
Osprey hunting, no Great-horned Owls, and nothing to fly into (Ospreys
do tangle with power lines sometime, which may have been what happened
to Little Ricky over in Miami).
If this is his wintering ground, one wonders why take
the back door route through Cuba to get there? It may have been the way
he got there on his first trip south, but since then he's surely
discovered the shortcut when he headed north in his first spring.
Curiouser and curiouser, as Alice once noted.
He is only 1,230 straight-line miles (1,981 km) from
his nest, but it was 1,800 miles (2,897 km) as this Osprey flew. Thanks
to his two days covering more than 400 miles (650 km) each, his average
ground covered was a very healthy 200 miles (322 km)/day of migration
(there were 9 of them). |
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15-31 Oct 2010: Sanford is definitely home
for the duration. Most of his activity is restricted to an area just 1.6
miles (2.6 km) across. |
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1-30 Nov 2010: Sanford wandered a bit more in November than October,
but still stayed close to home, as do all the adults we've followed
south. |
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1-31 Dec 2010: The usual winter map for an adult. |
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