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Banding News From the North-West
Biodiversity
10-10-2009
We all know that the
diversity of shorebirds and terns in Roebuck Bay is high and this
catch was a good example. Only 92 birds caught but 12 species 10
shorebirds and 2 terns.
A small team to
set the net at 2 Dog so plenty of walking back and forth with gear
and we set up the cages before the catch as well. This is
something Clive has shown me the benefits of and after initially
being concerned it would keep birds off the beach I am warming to
this method. It gives the birds less time in the net and that is
always a good thing.
We had a car driving
straight towards the net 2 hours before high tide but quick work
from Eduardo averted a disaster. We still hope for a marine park
so this ridiculous state of affairs can be addressed. The car sent
1500 birds off and away from the beach but left us 500 to work
with and a perfect twinkle from Helen got 30 godwit in front of
the net but as I waited for more birds to walk in those birds
promptly walked out! So another fine twinkle put 200 or so birds
in front but many in danger so I was edgy as the birds were
walking out of danger, which was good, but out of the net as well,
which was bad!
However once it was
safe we fired as I was concerned if we lost this flock from the
beach we might not get them back and as they say a bird in the
hand is worth 2 in the bush (or on the beach).
The small team worked very well and the birds were in the cages
and under shade in no time.
I only had 8 people
who had cannon netted before but the new-comers were brilliant and
we got through the birds in good time. Thankfully Alice turned up
and bled the colour-banded birds while a young British couple were
introduced to things pretty promptly when they wandered innocently
down to see what was going on. “Hi would you like to run those
birds and would you like to be bleeding assistant thank you very
much!”
The oldest retrap was
a Greater Sand Plover first banded on 02/01/2001 that is now at
least 11 years old. 4 of the 5 Ruddy Turnstone retraps were from
the same catch 27/11/2007.
Thanks to all for a
great day.
Chris Hassell
|
10/10/2009
|
|
|
AGE
IN YEARS
|
|
|
SPECIES
|
NEW
|
RETRAP
|
1st
|
2nd
|
2+
|
3rd+
|
TOTAL
|
| Bar-tailed
Godwit |
17
|
1
|
0
|
7
|
0
|
11
|
18
|
| Caspian
Tern |
1
|
0
|
0
|
0
|
1
|
0
|
1
|
| Curlew
Sandpiper |
2
|
0
|
0
|
1
|
0
|
1
|
2
|
| Eastern
Curlew |
1
|
0
|
0
|
0
|
0
|
1
|
1
|
| Greater
Sand Plover |
18
|
8
|
1
|
5
|
0
|
20
|
26
|
| Great
Knot |
5
|
0
|
1
|
3
|
0
|
1
|
5
|
| Lesser
Sand Plover |
1
|
1
|
0
|
1
|
0
|
1
|
2
|
| Little
Tern |
14
|
0
|
0
|
0
|
14
|
0
|
14
|
| Red
Knot |
1
|
0
|
0
|
0
|
0
|
1
|
1
|
| Red-necked
Stint |
0
|
1
|
0
|
0
|
0
|
1
|
1
|
| Ruddy
Turnstone |
9
|
5
|
1
|
1
|
0
|
12
|
14
|
| Sharp-tailed
Sandpiper |
7
|
0
|
0
|
2
|
1
|
4
|
7
|
|
TOTALS
|
76
|
16
|
3
|
20
|
16
|
53
|
92
|
|
MATES
17/10/2009
A brief report on a
big catch.
A small team
again this week but with 6 BBO course participants joining an experienced
group of locals we managed to deal well with a huge catch. Most processing
teams consisted of 2 people, one scribe and one other!
We
got a fantastic swag of re-traps (179) and controls (6) out of a catch of
531 and this of course gave us some old birds. 5 Great Knot controls were
from Chongming Dongtan, the banding site on an Island in the mouth of the
Yangtze River and one Curlew Sandpiper was from the Russian Arctic (but
from where exactly) I do not know yet.
A selection of
some older birds.
|
SPECIES
|
AGE NOW
|
|
Curlew Sandpiper
|
10, 17, 16, 8,
|
|
Greater Sand Plover
|
9, 11+,11+, 10+, 9, 16,
|
|
Great Knot
|
13+, 11+, 10+, 11+, 11+, 14+, 11+, 12,
12+, 12+, 11+, 10+, 12+, 16+, 14+, 11+,
|
|
Grey-tailed Tattler
|
10+,
|
|
Red Knot
|
15, 12+, 12+,
|
We all know that
shorebirds exhibit a high degree of site fidelity and therefore often hang
out with the same birds, but even knowing that, the 2 Red Knot we
processed on Saturday were pretty special and obviously the best of mates.
They were banded consecutively 052-00224 and 5 on 21/11/1999 and then
re-trapped in the same catch and taken out of the same compartment of a
keeping cage on 17/10/2009.
Dear All
The information on the Russian banded
Curlew Sandpiper.
Many thanks to Mikhail Soloviev and Pavel Tomkovich for the email below.
thank you for these fantastic news.
A female with metal ring KS10121 was ringed by me on the nest on
28.06.2005 on the central Taimyr (74°09'N, 99°34 'E). We had an
agreement then that birds migrating along East Asian-Australasian Flyway
would have a white flag on left tibia and color rings on tarsi. This bird
actually got green and blue rings on left tarsus, but they apparently were
gone. In 2004 we had a Curlew Sandpiper with the Polish ring at this site,
hence, your recovery clearly indicates that birds from Central Taimyr may
migrate to both directions - east and west.
Cheers
Chris
See below for full
catch details.
|
17/10/2009
|
|
|
|
AGE IN YEARS
|
|
|
SPECIES
|
NEW
|
RETRAP
|
CONTROL
|
1st
|
2nd
|
3rd+
|
TOTAL
|
|
Bar-tailed Godwit
|
3
|
0
|
|
0
|
1
|
2
|
3
|
|
Black-tailed Godwit
|
20
|
0
|
|
1
|
4
|
15
|
20
|
|
Curlew Sandpiper
|
48
|
18
|
1
|
2
|
8
|
49
|
57
|
|
Greater Sand Plover
|
47
|
51
|
|
8
|
20
|
70
|
98
|
|
Great Knot
|
130
|
82
|
5
|
2
|
21
|
194
|
217
|
|
Grey-tailed Tattler
|
25
|
10
|
|
2
|
6
|
27
|
35
|
|
Lesser Sand Plover
|
0
|
2
|
|
0
|
0
|
2
|
2
|
|
Red Knot
|
59
|
12
|
|
5
|
9
|
57
|
71
|
|
Red-necked Stint
|
9
|
2
|
|
1
|
1
|
9
|
11
|
|
Ruddy Turnstone
|
3
|
1
|
|
1
|
|
3
|
4
|
|
Sanderling
|
2
|
0
|
|
2
|
0
|
0
|
2
|
|
Sharp-tailed Sandpiper
|
4
|
0
|
|
0
|
0
|
4
|
4
|
|
Terek Sandpiper
|
6
|
1
|
|
1
|
1
|
5
|
7
|
|
TOTALS
|
356
|
179
|
6
|
25
|
71
|
437
|
531
|
Thanks to all for a huge effort.
Chris Hassell
|
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