Bird banding update for spring of 2018 - Farm Island and Oahe Downstream, South Dakota - South Dakota Game, Fish, and Parks
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Bird banding update for spring of 2018 Farm Island and Oahe Downstream, South Dakota South Dakota Game, Fish and Parks’ Wildlife Diversity Program staff band birds during the peak of spring and fall migration at two sites in central South Dakota. The Farm Island State Recreation Area site was established in 1993. The Oahe Downstream Recreation Area site (called Fisherman’s Point in this report and also called Diver’s Point by local users) was added in 2004. With the exception of 2011 and the spring of 2012, when extreme flooding prevented access to the sites, we have banded at both sites since their establishment. Species: Species most commonly banded at both sites during this banding season were Swainson’s Thrush, Yellow Warbler, Traill’s Flycatcher, and House Wren. 1
Families: Warblers, thrushes, and flycatchers dominated Farm Island captures during this season. The most commonly captured bird families at Fisherman’s Point were warblers, mimids (Gray Catbird), and smaller, relatively equal percentages of blackbirds/orioles, thrushes, and wrens. Other (
Capture Rates at Farm Island and Fisherman's Point 1.200 Capture Rate (Birds/Net Hour) 1.000 0.800 Farm Island 0.600 Fish Point 0.400 0.200 0.000 17-Apr 24-Apr 01-May 08-May 15-May 22-May 29-May Capture rates: The capture rate (number of birds per net hour) at Farm Island peaked on May 22, 2018, with a value of 1.11 birds/net hour. Fisherman’s Point’s peak occurred on May 20, 2018, with 1.13 birds/net hour. In all, we banded 541 birds during the spring of 2018; 429 birds at Farm Island of 50 species and an intergrade (between Yellow-shafted and Red-shafted flickers) and 112 birds at Fisherman’s Point of 27 species. Recaptures: We had 85 unique recaptures during the spring of 2018. A unique recapture is the first capture that season of a previously-banded bird. Subsequent recaptures of such birds during this spring were not included in this summary. All were birds we originally banded at the site of recapture. The recapture from the spring of 2014 was a female Orchard Oriole banded at Fisherman’s Point on May 27, 2014 as a second-year aged bird. She was also recaptured on May 24, 2016 at Fisherman’s Point, strongly suggesting that this is her nesting area. When banded Farm Island Fisherman’s Point spring 2018 20 10 fall 2017 4 0 spring 2017 20 10 fall 2016 4 1 spring 2016 7 2 fall 2015 1 0 spring 2015 2 2 fall 2014 1 0 spring 2014 0 1 TOTAL 59 26 3
Banding Highlights: We have previously discussed the opportunity our banding sites offer to encounter hybrids or intergrades between eastern and western species, subspecies, or races. The Northern Flicker has two forms. The Red-shafted Flicker is the western form of the Northern Flicker, and the Yellow- shafted Flicker is considered the eastern form of this species. Central South Dakota has both forms and intergrades between the two. During the spring 2018 banding season at Farm Island, we banded both a Red-shafted Flicker male (center) and a Flicker Intergrade (lower two images). 4
The Philadelphia Vireo pictured below was banded at Farm Island on June 1, 2018, only the 11th individual of this species banded at either of our sites. This species has a dark crown, dark lores (feathers between the eye and bill), a yellow throat, dark flight feathers, and a relatively short tail. 5
Spring American Redstarts may be adult females, adult males, or first-summer males. A first summer (yearling) male may resemble a male or female. His head and throat often have black splotches, and the sides of his body may be salmon-colored rather than yellow like a female. Although capable of breeding, a yearling male is less likely to attract a female than an adult male with red-and-black plumage. First-spring male American Redstarts. Adult male (left) and adult female (right) The American Redstart’s tail pattern looks like the letter “T.” 6
Number of birds banded by species at Farm Island, spring of 2018 Species Number Banded Swainson's Thrush 82 Least Flycatcher 41 Yellow Warbler 39 Traill's Flycatcher 35 Orange-crowned Warbler 31 Common Yellowthroat 28 American Redstart 18 House Wren 12 Red-winged Blackbird 11 American Goldfinch 8 Northern Waterthrush 8 Bell’s Vireo 7 Common Grackle 7 Red-eyed Vireo 7 Song Sparrow 7 Brown-headed Cowbird 6 Cedar Waxwing 6 Warbling Vireo 6 Lincoln’s Sparrow 5 White-crowned Sparrow 5 Black-capped Chickadee 4 Blackpoll Warbler 4 Gray Catbird 4 Northern Cardinal 4 American Robin 3 Black-headed Grosbeak 3 Downy Woodpecker 3 Mourning Warbler 3 Myrtle Warbler (Yellow-rumped) 3 Spotted Towhee 3 Brown Thrasher 2 Great Crested Flycatcher 2 Ovenbird 2 Ruby-crowned Kinglet 2 White-breasted Nuthatch 2 Chipping Sparrow 1 Flicker Intergrade 1 Gray-cheeked Thrush 1 Hairy Woodpecker 1 MacGillivray’s Warbler 1 Philadelphia Vireo 1 Pine Siskin 1 Rose-breasted Grosbeak 1 Red-bellied Woodpecker 1 Red-shafted Flicker 1 Slate-colored Junco 1 Veery 1 Wilson’s Warbler 1 7
White-throated Sparrow 1 Yellow-breasted Chat 1 Yellow-bellied Flycatcher 1 TOTAL 429 Red-eyed Vireo 8
Number of birds banded by species at Fisherman’s Point, spring of 2018 Species Number Banded Yellow Warbler 25 Gray Catbird 10 Swainson's Thrush 10 Common Yellowthroat 9 House Wren 9 Baltimore Oriole 8 Pine Siskin 5 American Robin 4 Myrtle Warbler 4 Traill's Flycatcher 4 Black-headed Grosbeak 3 Least Flycatcher 3 Orange-crowned Warbler 3 Orchard Oriole 2 American Goldfinch 1 Chipping Sparrow 1 Great Crested Flycatcher 1 Hairy Woodpecker 1 Lincoln’s Sparrow 1 Magnolia Warbler 1 Mourning Warbler 1 Northern Waterthrush 1 Rose-breasted Grosbeak 1 Red-winged Blackbird 1 Spotted Towhee 1 Tennessee Warbler 1 White-breasted Nuthatch 1 TOTAL 112 Banders: Eileen Dowd Stukel, Silka Kempema, and Casey Heimerl. U.S.G.S. Banding Permit #21966. Acknowledgements: This activity is supported by Wildlife and Sport Fish Restoration Program Project W-95-R-51, Study 9509-IV and matching funds from SDGFP, Wildlife Division. The following assisted with bird banding during the spring of 2018: Doug Backlund Travis Runia Lorna Wright Maya Figures prepared by Casey Heimerl. Photos by Eileen Dowd Stukel, Casey Heimerl and Kenny Miller. 9
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