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Metro Beach Metropark
Spring 2004 Bird Banding Report
Allen Chartier
INTRODUCTION
Migrant songbird banding was conducted at Metro Beach by Ellie T. Cox
from Autumn 1989 through Spring 2001. An average of 14 nets (12-meters in
length) were operated each spring from the last week in April through the
first week of June, entirely on weekends.
In early April 2004, I resumed this migration monitoring and study of
stopover ecology, placing a total of 7 nets in the same general area as
had been used previously. Between 2001 and 2004, the habitat had changed
somewhat, mainly in the open and shrubby areas, but a number of larger
trees in the small woodlands had also fallen, preventing placement of some
nets in similar locations. A description of the habitat as it appears in
May 2004 is provided below.
SITE DESCRIPTION
The banding area is located at the west end of the
maintenance road which passes north of Pt. Rosa Marsh. Nets were set up in
this area mainly to the south of this road, and west of the marsh. An
approximate "center point" of the banding area is located along
the road at 42° 34¢
32.5² N, 82° 48¢
42.3² W. The banding area is approximately 120
meters east-west, and 75 meters north-south. To the northwest of this
point no mist nets were set up due to the difficulty of access. Vegetation
northwest of the center point is mainly shrub-swamp with thick growth of
Black Willow (Salix nigra) and Pussy Willow (Salix discolor),
and a few scattered Eastern Cottonwoods (Populus deltoides). To the
northeast of the center point is a mostly dry woodland, with a few wet
areas adjacent to the shrub-swamp, consisting almost entirely of Eastern
Cottonwoods and scattered individuals of Pignut Hickory (Carya glabra)
and Boxelder (Acer negundo). The undergrowth here contains a few
Red-Osier Dogwoods (Cornus stolonifera), Swamp Fly Honeysuckle (Lonicera
oblongifolia), Virginia Creeper (Parthenocissus quinquefolia),
Red Mulberry (Morus rubra), and much Summer Grape (Vitis
aestivalis) and Wild Red Raspberry (Rubus idaeus). To the
southeast, an area of closely-spaced Black Willows is adjacent to the
road, which thins out to the south and east as it meets the marsh, which
consists of a mixture of native Cattails (Typha latifolia) and
alien Phragmites (Phragmites australis). To the south and south
west, an open area with grasses and Cattails occurs, with Pussy Willows
and a large (new) area of alien Multiflora Rose (Rosa multiflora)
nearest the road, and a stand of Silver Maples (Acer saccharinum)
with individual Black Oak (Quercus velutina) and Eastern Hop
Hornbeam (Ostrya virginiana) trees. This maple woodlot meets a
small cattail marsh at its southern end and farther south opens up into a
grassy field and marsh. Ground cover is most prevalent south of the road,
and consists mainly of Spotted Jewelweed (Impatiens capensis).
SPRING 2004 RESULTS
Banding was conducted on a total of 16 days between
April 4 and May 30 (6 days in April, 10 days in May). The daily standard
was to have the nets open for a minimum of 6 hours (longer if conditions
merit), beginning as soon as possible after entering the park at 6:00 a.m.
and setting up all the nets. The total coverage of 96.00 hours equaled the
total possible minimum hours. Net hours is the total number of 12-meter
nets open each day multiplied by the number of hours open. The total net
hours for this spring was 666.00. This figure allows for comparisons with
previous years, despite differences in number of nets or days of
operation, by determining the number of birds per 100 net hours. This
spring, the overall capture rate was 102.0 birds per 100 Net Hours.
Specific comparisons with the 1989-2001 study cannot be made as the annual
capture rate data is not yet available to me, but was typically in the
range of 30-60 per 100 Net Hours. This data confirms what was obvious to
all observers. It was a fantastic spring for migrants.
A total of 575 birds of 66 species were banded, with a
peak day of 120 of 24 species on May 9. That peak day was extremely busy,
and 48 birds (mostly White-throated Sparrows) had to be released as there
wasn’t time to get them all banded safely. Only half the nets were open
that day, and only for a total of 4 hours, and the capture rate was 950
per 100 Net Hours!
Highlights included an Acadian Flycatcher on May 23
(only 2nd ever banded here), a Blue-gray Gnatcatcher on May 8,
three White-eyed Vireos, four Blue-winged Warblers, a Golden-winged
Warbler on May 9, a female Hooded Warbler on May 23 (first ever banded
here), and an Eastern Towhee on April 17. The most frequently banded
species were White-throated Sparrow (99), Gray Catbird (30), Red-winged
Blackbird (30), Magnolia Warbler (28), Common Yellowthroat (22), American
Robin (19), Swamp Sparrow (19), Yellow Warbler (18), and Northern
Waterthrush (18). Sparrows and warblers were banded in good numbers, while
thrushes were somewhat low. Despite specific efforts, and a special permit
to band Ruby-throated Hummingbirds, none was captured this spring. Also
notable by their absences were Red-eyed Vireo, Cape May Warbler, and
Black-throated Blue Warbler. A complete listing of birds banded can be
found in the table below.
Recaptures are an indication of how migrant birds use
the area as a stopover site. This spring, there was a total of 55
recaptures, which included four birds originally banded by Cox. These
included: a male Red-winged Blackbird originally banded as a second-year
on May 5, 2001, making this bird a known fifth year bird; a female
Northern Cardinal originally banded as an after hatch year on May 7, 1999,
making this bird at least an after seventh year bird; a male Downy
Woodpecker originally banded on April 29, 2000 as an after hatch year,
making this bird at least an after sixth year bird; and a female Baltimore
Oriole originally banded on May 5, 2001 as an after hatch year, making
this bird at least an after fifth year bird.
The other 51 recaptures, as well as the outstanding
capture rate this spring, provides strong evidence for the importance of
this area at Metro Beach for migrant birds as a stopover site.
Species |
No. Banded |
No./100 Net Hours |
Downy Woodpecker |
8 |
1.20 |
Hairy Woodpecker |
1 |
0.15 |
Northern (Yellow-shafted) Flicker |
3 |
0.45 |
Eastern Wood-Pewee |
1 |
0.15 |
Yellow-bellied Flycatcher |
5 |
0.75 |
Acadian Flycatcher |
1 |
0.15 |
Alder Flycatcher |
3 |
0.45 |
Willow Flycatcher |
2 |
0.30 |
"Traill’s" Flycatcher |
9 |
1.35 |
Least Flycatcher |
5 |
0.75 |
Eastern Phoebe |
1 |
0.15 |
Great Crested Flycatcher |
1 |
0.15 |
Blue Jay |
1 |
0.15 |
Black-capped Chickadee |
7 |
1.05 |
Brown Creeper |
7 |
1.05 |
House Wren |
8 |
1.20 |
Winter Wren |
1 |
0.15 |
Golden-crowned Kinglet |
4 |
0.60 |
Ruby-crowned Kinglet |
10 |
1.50 |
Blue-gray Gnatcatcher |
1 |
0.15 |
Veery |
8 |
1.20 |
Gray-cheeked Thrush |
1 |
0.15 |
Swainson’s Thrush |
9 |
1.35 |
Hermit Thrush |
3 |
0.45 |
Wood Thrush |
2 |
0.30 |
American Robin |
19 |
2.85 |
Gray Catbird |
30 |
4.50 |
Brown Thrasher |
4 |
0.60 |
White-eyed Vireo |
3 |
0.45 |
Warbling Vireo |
4 |
0.60 |
Blue-winged Warbler |
4 |
0.60 |
Golden-winged Warbler |
1 |
0.15 |
Tennessee Warbler |
1 |
0.15 |
Orange-crowned Warbler |
4 |
0.60 |
Nashville Warbler |
11 |
1.65 |
Yellow Warbler |
18 |
2.70 |
Chestnut-sided Warbler |
5 |
0.75 |
Magnolia Warbler |
28 |
4.20 |
Yellow-rumped (Myrtle) Warbler |
7 |
1.05 |
Black-throated Green Warbler |
2 |
0.30 |
Blackburnian Warbler |
1 |
0.15 |
(Western) Palm Warbler |
2 |
0.30 |
Black-and-white Warbler |
12 |
1.80 |
American Redstart |
5 |
0.75 |
Ovenbird |
15 |
2.25 |
Northern Waterthrush |
18 |
2.70 |
Mourning Warbler |
8 |
1.20 |
Common Yellowthroat |
22 |
3.30 |
Wilson’s Warbler |
7 |
1.05 |
Canada Warbler |
13 |
1.95 |
Hooded Warbler |
1 |
0.15 |
Northern Cardinal |
10 |
1.50 |
Rose-breasted Grosbeak |
2 |
0.30 |
Indigo Bunting |
1 |
0.15 |
Eastern Towhee |
1 |
0.15 |
American Tree Sparrow |
1 |
0.15 |
Fox Sparrow |
2 |
0.30 |
Song Sparrow |
13 |
1.95 |
Lincoln’s Sparrow |
9 |
1.35 |
Swamp Sparrow |
19 |
2.85 |
White-throated Sparrow |
99 |
14.86 |
(Eastern) White-crowned Sparrow |
1 |
0.15 |
Red-winged Blackbird |
30 |
4.50 |
Common Grackle |
12 |
1.80 |
Brown-headed Cowbird |
10 |
1.50 |
Baltimore Oriole |
10 |
1.50 |
American Goldfinch |
8 |
1.20 |
ACKNOWLEDGMENTS
I wish to thank the Metro Beach management, in
particular Jim Pershing, for permitting this banding to be conducted on
this property, and to thank the Nature Center Staff, particularly Leslie
Sutton and Julie Champion. Thanks also to those able assistants who helped
clear net lanes, and helped in many other ways through the season,
including Russ Brown, Cindy Cartwright, Bill Johnson, Beth Johnson, Fred
Kaluza, Linda Kaluza, Angel Mitchell, Mark O’Keefe, Carl Pascoe, Rachel
Powless, Mike Reese, Jason Sodergren, and Sue Wright. I would especially
like to thank Ellie Cox for encouraging me to continue the project she
established in 1989.
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