Opposition to the article came because the bobolink
field is a hay field, and the people who donated the land were people who wanted to see the land continue as farm land.
33 birds per survey point for Henslow's Sparrows at Tri-Valley to 0 for Savannah Sparrows and Bobolinks
The conservation area is also an active area for bobolink
Aggressive response of adult Bobolinks
to neck ligatures on nestlings.
Most nests (80%) had a single late-hatched nestling, resulting from incubation beginning with the penultimate egg, as previously described for Bobolinks
breed in hayfields and pastures throughout this agricultural region (Shustack 2004, Perlut et al.
The effects of site quality on the breeding-site fidelity in Bobolinks
(Dolichonyx oryzivorus), whose return rates varied from 44 (n = 85) to 70% (n = 79) for adult males (Gavin and Bollinger 1988, Bollinger and Gavin 1989, Martin and Gavin 1995), have return rates that are more commensurate with shrub and forest dwelling species (Green 1992).
Santa Cruz, Bolivia, ~100 km northwest of the city of Santa Cruz, I observed a flock of ~ 1,000 Bobolinks
(Dolichonyx oryzivorous) foraging in soybean (Glycine max) fields.
Nests of other grassland species, such as those of Ring-necked Pheasants (Phasianus colchicus), Sedge Wrens (Cistothorus platensis), and Bobolinks
(Dolichonyx oryzivorus), were too few in number for analyses, as these species are relatively rare on the reclaimed surface mines (DeVault et al.
Use of an old-field habitat by Bobolinks
and Red-winged Blackbirds.
Eastern Meadowlarks (Sturnella magna) and Bobolinks
(Dolichonyx oryzivorus), for example, respond aggressively to snake nest predators by pecking at the snake; while other birds, like Savannah Sparrow (Passerculus sandwichensis), exhibit nonaggressive nest defense behavior (Ellison and Ribic 2012).
Such management would especially benefit songbirds like bobolinks
and meadowlarks, various grassland sparrows, and game species like deer, turkey, woodcock, and pheasant.
Cedar waxwings fly south; bobolinks
and woodcocks follow.
2014 is the first year of a multi-year project to create grassland habitat for bobolinks
, a threatened species.