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July 11, 2016

roseate spoonbill range

1997, accessed on 7/13/98) show a slight increase (+1.5%) in spoonbill numbers for the entire Texas coast, but this trend may reflect normal population fluctuations. The species is currently very widespread and numerous in the Neotropics, extending its range south to Argentina. eBird data from 2014-2018. Texas Parks Wildl. https://doi.org/10.2173/ebirdst.2018, Certain products may be unavailable due to insufficient data. . The colors indicate the season in which the bird may find suitable conditions— blue for winter, yellow for summer (breeding), and green for where they overlap (indicating their presence year-round). Estimated for 2018. Populations are declining in some core areas of this species’ summer range, and it remains to be seen how a shifting climate will affect this charismatic bird. Nesting ecology of Roseate Spoonbills at Nueces Bay, Texas. The size of the circles roughly indicates the species’ range size in 2000 (left) and 2080 (right). eBird data from 2014-2018. Incubation begins the day after the first egg is laid, so the incubation period for each egg is 22 days. Roseate Spoonbill Platalea ajaja Range map: Breeding Data provided by eBird. University of Texas Press, Austin. Pledge area image: Simon Hadleigh-Sparks/Flickr Creative Commons  Legal Notices Privacy Policy Contact Us. Roseate Spoonbill Platalea ajaja. Young spoonbills fledge in early July at about six weeks of age and by early August adults and young begin to disperse from the nesting area. Since present numbers appear to be holding steady at about 2300 breeding pairs (Texas Parks and Wildlife Dept. The darker the shaded area, the more likely it is the bird species will find suitable climate conditions to survive there. We call this the bird’s “climatic range.”. Roseate spoonbills are plentiful in much of their range, but that hasn't always been the case. The darker the color, the more favorable the climate conditions are for survival. Federal Aide Project Nos. Estimated for 2018. 1992). Version 96.4. The most inland confirmed TBBAP nest locations were at Addicks Reservoir, quads H-7 and H-8 in latilong 29095, and at Lake Texana, quad F-3 in latilong 29096. Lots of overlap means the bird’s range doesn’t shift much. Texas Colonial Waterbird Society, Caesar Kleberg Wildl. With rosy pink wings, an orange tail, and a naked, blotchy, scaly grayish-green head, the Roseate Spoonbill is at once beautiful and bizarre. Copyright © 2019 National Audubon Society, Inc. However, egg collectors took three clutches in 1921, 1923, and 1924 in Victoria and Refugio  counties (Welder Wildlife Foundation Egg Collection, pers. Range. Become an Audubon member today to help birds facing climate change. Surveys for the Texas coast over a recent 20-year period (1973-1992) suggest that spoonbill numbers during summer range from about 1,400 to 2,500 breeding pairs (2,800 and 5,000 individuals, respectively). The next three frames predict where this bird’s suitable climate may shift in the future—one frame each for 2020, 2050, and 2080. 1992). 2020. eBird Status and Trends, Data Version: 2018; Released: 2020. Keith A. Arnold This map depicts the range boundary, defined as the areas where the species is estimated to occur at a rate of 5% or more for at least one week within … Cornell Lab of Ornithology, Ithaca, New York. [CDATA[/* >*/. W-103-R-10, W-103-R-12, W-103-R-14, W-103-R-16, W-103-R-17, W-103-R-18, W-125-R-1, W-125-R-3, Austin. Completed nests averaged 57 cm (22 in) wide and 11 cm (4 in) deep. The Roseate Spoonbill. Phone: (979) 845-5777 Egg laying usually begins during early to  mid-May. Cornell Lab of Ornithology, Ithaca, New York. Learn more. } Spoonbills never built nests on platforms remaining from the previous year. Texas Colonial Waterbird Census Summaries, 1981-1992. @media only screen and (max-width: 600px) { e-mail: kaarnold@tamu.edu. 1982). 1982). The TBBAP findings confirmed breeding (76% of total nest records) in all of Texas’s coastal counties and several inland counties. Patuxent Wildlife Research Center, Laurel, Maryland. No overlap means the species will leave its current range entirely. Auk 99: 275-284. Upon this platform, live and dead stems of sea ox-eye (Borrichia frutescens), groundsel tree, and grasses were intertwined into a coarse lining about 5 cm (2 in) deep. Allen, R.  P.  1942. Our mission is to conserve and restore natural ecosystems, focusing on birds, other wildlife, and their habitats for the benefit of humanity and the earth’s biological diversity. font-size: 40px; This map depicts the range boundary, defined as the areas where the species is estimated to occur at a rate of 5% or more for at least one week within the breeding season. National Audubon Society, Res. Res. Groups sweep their spoonbills through shallow fresh or salt waters snapping up crustaceans and fish. 1982). Fink, D., T. Auer, A. Johnston, M. Strimas-Mackey, O. Robinson, S. Ligocki, B. Petersen, C. Wood, I. Davies, B. Sullivan, M. Iliff, S. Kelling. 2., New York. The most inland probable nest locale was Somerville Lake, quad C6 in latilong 30096. Roseate Spoonbill Platalea ajaja. In Nueces Bay, spoonbills nested only on dredge-material islands and constructed their nests of plant material available there or on the nearby shoreline (White et al. Although Roseate Spoonbills probably never were extremely abundant in Texas, they were virtually extirpated there between 1850 and 1919 because of encroaching civilization and exploitation by the millinery trade (Allen 1942). Range: Breeding. DISTRIBUTION: The breeding range of the Roseate Spoonbill extends for over 800 km (500 mi) along the Texas coast, from the vicinity of Port Arthur in the north to that of Port Isabel in the south. The tarsus measures 9.7–12.4 cm (3.8–4.9 in), the culmen measures 14.5–18 cm (5.7–7.1 in) and the wing measures 32.3–37.5 cm (12.7–14.8 in) and thus the legs, bill, neck and spatulate billall appear elongated. Texas Colonial Waterbird Society. Because of a paucity of comparable reproductive data on this species, it is difficult to assess whether this figure is sufficient to maintain the population. Nest height above ground averaged 24 cm (9 in) atop low vegetation and 71 cm (28 in) in small trees and shrubs. However, with the advent of laws to protect colonial nesting birds, Roseate Spoonbill numbers have gradually increased; yearly estimates of the number of breeding pairs in coastal Texas during the last two decades vary from about 1,400 to 2,500 (Texas Colonial Waterbird Society 1982, Texas Parks and Wildlife Dept. https://doi.org/10.2173/ebirdst.2018, Certain products may be unavailable due to insufficient data. .

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