This event prompted me to investigate whether the Marsh Wren, like its closest living relative the Sedge Wren, also made intra-summer movements to breed a second time.
Like Sedge Wren (Hobson and Robbins 2009), Eastern Marsh Wrens typically arrived en mass during the July-August period following weak cold fronts out of the north.
Fish and Wildlife Service, San Bernard National Wildlife Refuge for their assistance in collecting Sedge Wrens
palustris and House Wren Troglodytes aedon, because they are the closest relatives to the Sedge Wren (Barker 2004).
Analyses of individual nuclear loci had lower nodal support values than the mitochondrial topology, however, both introns supported the monophyly of sedge wrens and the sister relationship of North American stellaris to the remainder of sedge wren populations.
Several neighboring states list sedge wrens
as a threatened or endangered specie.
Bachman's Sparrow and Sedge Wren rarely have been studied in winter, and most reports of Bachman's Sparrows using RCW clusters are from the breeding season.
We specified a Poisson distribution for Sedge Wren and a negative binomial distribution for Bachman's Sparrow, Henslow's Sparrow, and total bird densities, both of which are appropriate for zero-rich data.
Our objectives were to: (1) describe habitat variables associated with Sedge Wren
breeding territories in Lake Saint-Francois NWA, (2) compare local habitat variables of territories occupied and unoccupied by Sedge Wrens
, and (3) estimate Sedge Wren
Wayne collected three other species in the same habitats as the rails: LeConte's Sparrows (Ammodramus lecontell), Sedge Wrens
(Cistothorus platensis), and Henslow's Sparrows (A.
We investigated the relative abundance of Le Conte's Sparrow (Ammodramus leconteii), Sedge Wrens
(Cistothorus platensis), Savannah Sparrow (Passerculus sandwichensis), and Swamp Sparrow (Melospiza georgiana) in areas burned within the previous 1, 2 or 3 years to examine the effect of fire on herbaceous and woody vegetation, and habitat associations of individual bird species.
In North America, for example, sedge wrens
migrate, and each male improvises most of his several hundred songs.
The tour will include viewing a wetland restoration project; warm-season grass, apple tree, crop and shrub plantings; construction of brush piles; and a nesting area for Sedge Wrens
, which currently are on Pennsylvania's list of threatened species.
Prairie birds include vesper, savanna, field and grasshopper sparrows, meadowlarks, raptors such as northern harriers and kestrels, wetland species such as sora rails, marsh and sedge wrens
, sandpipers and snipes.
(Cistothorus platensis) improvise (make up their songs) and they do not imitate (learn songs from) their neighbors as other wrens do--because Sedge Wrens
are nomadic due to the unpredictability of their sedge-meadow breeding habitats.