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Preamble
Our first visit to Robert Bore was
made in 2004 when we joined the Desert Discovery expedition. The opportunity to
visit the area with Desert Discovery’s support was what we had been looking
for since our retirement from the workforce. Carrying out research into inland
species would provide valuable data on bird life in the desert regions, where
few researchers had been able to spend more than cursory visits.
This report summarises the results
of our work in 2004, 2005, 2006 and 2007.
Introduction
The relative ease of access to
Robert Bore inspired us to devise a five-year research plan, which would entail
annual visits to this section of the northern Great Sandy Desert.
In 2005 we returned with a party
of three vehicles and seven people. Among the party were two birders with
experience as bird banders; a professional entomologist in search of
Sandgropers, a retired lecturer in entomology and his wife, both keen birders.
In 2006, subsequent to our visit
to the Percival Lakes in the southern Great Sandy Desert, we travelled north
with a party of four vehicles and eight people. Six of us were experienced
banders and two were desert enthusiasts.
In 2007 our party consisted of two
vehicles and five people. One of the accompanying members had previous banding
experience. Another vehicle and two people later joined us.
Methods
Mist nets were employed to capture
birds. Net lenghts varied, depending on the clearings available. The nets used
were 9m, 12m and 18m long, sometimes joined to form long capture lines. We try
to avoid altering the landscape too much, pruning bushes only when they might
cause damage to the nets or create hazards for the birds. (A bird hanging in a
net can come to no harm, but can be at risk in windy conditions if the net is
tangled in a bush).
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Budgies in the Net!!! Get the band-aids. |
Net opening times varied,
determined by wind conditions which did reduce effectiveness of the nets and so
interfered with operating times. We tried to have the nets open by 0630-0700hrs
and closed at about 1530-1600hrs. Times of operating were not consistent. When
not in use the nets were furled and tied to render them safe overnight.
Our standard practice of checking
the nets every 20 to 30 minutes was applied, with more frequent checks made as
temperatures rose. The well-being of captive birds is always our prime concern
The processing routine began with
identifying the bird, applying a band of the appropriate size and measured to a
set procedure determined by my project requirements. As well as measuring the
bird I checked it for signs of body moult, examined the wings to evaluate
feather wear and tabulate wing moult if present, and checking the belly and
cloaca to see if there were signs of breeding activity. Brooding females (and
males in some species) have a distinct incubation patch, and all birds in
breeding condition can be sexed by the difference in the shape of the cloaca.
This is especially valuable in species where the plumage of the sexes is
similar.
The final part of processing was
to weigh the bird on an electronic balance. The bird was then released, often by
volunteers and interested onlookers. Birds were also held for photographing when
required.
In 2004 we held eight banding
sessions between 14 June and 2 July, eight in 2005 from
6 to 17 July, nine in 2006 between
23 July and 2 August and 12 between 4 to 16 July 2007
Results
Table 1. Productivity and total for years 2004 to 2007
inclusive.
|
Robert Bore |
2004 |
2005 |
2006 |
2007 |
Grand Total |
|
Species |
SpNo |
B |
R |
Total |
B |
R |
Total |
B |
R |
Total |
B |
R |
Total |
B |
R |
Total |
|
Brown Quail |
10 |
|
|
|
|
|
|
|
|
|
1 |
|
1 |
1 |
|
1 |
|
Diamond Dove |
31 |
|
|
|
5 |
|
5 |
|
|
|
5 |
|
5 |
10 |
|
10 |
|
Budgerigar |
310 |
|
|
|
|
|
|
18 |
|
18 |
19 |
|
19 |
37 |
|
37 |
|
Red-backed Kingfisher |
325 |
1 |
|
1 |
|
1 |
1 |
|
|
|
|
|
|
1 |
1 |
2 |
|
Rainbow Bee-eater |
329 |
1 |
|
1 |
|
|
|
1 |
|
1 |
|
|
|
2 |
|
2 |
|
Horsfield's Bronze-Cuckoo |
342 |
3 |
|
3 |
|
|
|
|
|
|
5 |
|
5 |
8 |
|
8 |
|
Willie Wagtail |
364 |
|
|
|
|
|
|
2 |
|
2 |
2 |
1 |
3 |
4 |
1 |
5 |
|
Rufous Whistler |
401 |
|
|
|
10 |
|
10 |
2 |
|
2 |
12 |
|
12 |
24 |
|
24 |
|
White-winged Triller |
430 |
11 |
1 |
12 |
7 |
|
7 |
4 |
|
4 |
2 |
|
2 |
24 |
1 |
25 |
|
Crimson Chat |
449 |
|
|
|
|
|
|
|
|
|
1 |
|
1 |
1 |
|
1 |
|
Rufous Songlark |
509 |
1 |
|
1 |
|
|
|
3 |
3 |
6 |
|
|
|
4 |
3 |
7 |
|
Masked Woodswallow |
544 |
25 |
|
25 |
|
|
|
45 |
|
45 |
7 |
|
7 |
77 |
|
77 |
|
Black-faced Woodswallow |
546 |
|
|
|
1 |
|
1 |
3 |
|
3 |
21 |
3 |
24 |
25 |
3 |
28 |
|
Mistletoebird |
564 |
|
|
|
1 |
|
1 |
|
|
|
|
|
|
1 |
|
1 |
|
Red-browed Pardalote |
570 |
|
|
|
|
|
|
|
|
|
1 |
|
1 |
1 |
|
1 |
|
Black-chinned Honeyeater |
580 |
4 |
1 |
5 |
16 |
1 |
17 |
15 |
4 |
19 |
5 |
5 |
10 |
40 |
11 |
51 |
|
Banded Honeyeater |
588 |
|
|
|
|
|
|
3 |
|
3 |
|
|
|
3 |
|
3 |
|
White-fronted Honeyeater |
594 |
|
|
|
3 |
|
3 |
|
|
|
|
|
|
3 |
|
3 |
|
Brown Honeyeater |
597 |
8 |
|
8 |
125 |
|
125 |
63 |
4 |
67 |
31 |
4 |
35 |
227 |
8 |
235 |
|
Rufous-throated Honeyeater |
601 |
64 |
7 |
71 |
2 |
|
2 |
6 |
|
6 |
1 |
|
1 |
73 |
7 |
80 |
|
Pied Honeyeater |
602 |
|
|
|
|
|
|
19 |
|
19 |
4 |
|
4 |
23 |
|
23 |
|
Singing Honeyeater |
608 |
7 |
|
7 |
18 |
2 |
20 |
58 |
4 |
62 |
49 |
19 |
68 |
132 |
25 |
157 |
|
Grey-headed Honeyeater |
621 |
20 |
5 |
25 |
62 |
14 |
76 |
133 |
42 |
175 |
192 |
112 |
304 |
407 |
173 |
580 |
|
Zebra Finch |
653 |
2 |
|
2 |
3 |
|
3 |
|
|
|
55 |
|
55 |
60 |
|
60 |
|
|
|
147 |
14 |
161 |
253 |
18 |
271 |
375 |
57 |
432 |
413 |
144 |
557 |
1188 |
233 |
1421 |
|
No of Species |
12 spp |
13 spp |
15 spp |
18 spp |
24 spp |
|
Number of banding days |
8 |
8 |
9 |
12 |
37 |
Time recovered after banding
Among the birds recaptured during the 2007 trip were eight individuals banded
in 2004, five banded in 2005 and thirty-one banded in 2006.
Table 2. Number of birds banded in previous years and
recaptured in 2007.
|
Species |
After 1 Year |
After 2 Years |
After 3 Years |
|
Singing Honeyeater |
7 |
|
2 |
|
Grey-headed
Honeyeater |
24 |
5 |
6 |
Movement
The three banding sites used are 1.5 km apart. Table 3 lists movement between
sites.
Table 3. Lapsed time and distance of recoveries between
sites.
Species
|
Distance
moved - km
|
Years
since banding
|
No.
of individuals
|
Singing
Honeyeater
|
0.5
|
1
|
3
|
|
1.0
|
1
|
3
|
Grey-headed
Honeyeater
|
0.5
|
1
|
5
|
|
0.5
|
3
|
1
|
1.0
|
1
|
1
|
1.5
|
1
|
3
|
Discussion
Each year the dominant species found in the area changes. In 2004 the most
common bird in the nets was the Rufous–throated Honeyeater (43.5% of all birds
banded). This changed in 2005 when the Brown Honeyeater dominated (49.4%). In
2006 the Grey-headed Honeyeater (35.5%) was found in all areas, as it was in
2007, increasing to 46.5% of all birds banded.
Once again we were able to
identify sub-adult birds among those banded. In 2004 we found young of 8
species: Horsfield’s Bronze-Cuckoo, White-winged Triller, Masked Woodswallow,
Black-chinned Honeyeater, Brown Honeyeater, Rufous–throated Honeyeater,
Singing Honeyeater and Grey-headed Honeyeater. Immature birds comprised 71.7% of
all birds banded.
In 2005 there were sub-adults of
seven species: Diamond Dove, Rufous Whistler, Black-chinned Honeyeater,
White-fronted Honeyeater, Brown Honeyeater, Singing Honeyeater and Grey-headed
Honeyeater. Immature birds comprised 26.5% of all birds banded.
In 2006 there were sub-adults of
ten species. Rufous Whistler, White-winged Triller, Masked Woodswallow,
Black-chinned Honeyeater, Banded Honeyeater, Brown Honeyeater, Rufous–throated
Honeyeater, Pied Honeyeater, Singing Honeyeater and Grey-headed Honeyeater.
Immature birds comprised 42.1% of all birds banded.
In 2007 there were sub-adults of
six species. Diamond Dove, Black-chinned Honeyeater, Pied Honeyeater, Singing
Honeyeater, Grey-headed Honeyeater and Zebra Finch. Immature birds comprised
12.6% of all birds banded.
Acknowledgements
In 2004 we received valuable
assistance from David and Barbara Travis, Graham Young, Graham Kent and Bob
Lasseter. In 2005 our helpers were Alex and June Morrison, Win and Ruth Bailey.
In 2006 Gwen and Graham Goodreid, Rita and George Watkins, and Kerry and Bruce
Goodreid provided support. Our helpers in 2007 were Mary Molloy, Arpad
Mencshelyi, Zac Mencshely-Molloy, John and Bev O’Brien. We extend sincere
thanks to all for their generous and cheerful assistance.
We thank Pete de Long of Dampier
Downs for allowing us access to the station roads.
Pilbara Banding
On two previous trips to Robert
Bore we had spent time bird watching at a crossing of the De Grey River on a
road from Newman to the abandoned Goldsworthy mine site. Although the site is on
Yarrie Station, it is named Muccan after an adjacent property managed by the
Coppin family, owners of Yarrie.
We recorded good numbers of
Black-tailed Treecreepers at this site and decided to spend time trying to band
some of these individuals, the subspecies Climacteris melaneura wellsi. We
spent two days here on the northward journey and three more days on our return
south, banding eleven of this species. Another species new to our list of banded
birds were twenty-six Painted Finches. It is our firm resolution to return here
in 2008.
The table below lists the results of our time spent banding
at Muccan.
|
Species Name |
Sp No |
B |
R |
S |
Total |
|
Peaceful Dove |
30 |
22 |
3 |
1 |
25 |
|
Diamond Dove |
31 |
15 |
|
|
15 |
|
Budgerigar |
310 |
4 |
|
|
4 |
|
Rainbow Bee-eater |
329 |
3 |
|
|
3 |
|
Grey-crowned Babbler |
443 |
8 |
|
|
8 |
|
Rufous Songlark |
509 |
5 |
2 |
1 |
7 |
|
Black-tailed Treecreeper |
562 |
11 |
3 |
4 |
14 |
|
White-plumed Honeyeater |
625 |
30 |
5 |
1 |
35 |
|
Zebra Finch |
653 |
10 |
|
|
10 |
|
Painted Finch |
654 |
26 |
|
1 |
26 |
|
5 Banding days |
10 spp |
134 |
13 |
8 |
147 |
Perry and Alma de Rebeira.
Supervising Banders.
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