Everard Range Tit-Warbler (Acanthiza mariane)

Dr. L. Everard Napier

Spatiotemporal variation in range-wide Golden-cheeked Warbler breeding habitat

Habitat availability ultimately limits the distribution and abundance of wildlife species. Consequently, it is paramount to identify where wildlife habitat is and understand how it changes over time in order to implement large-scale wildlife conservation plans. Yet, no work has quantified the degree of change in range-wide breeding habitat for the Golden-cheeked Warbler (Setophaga chrysoparia),...

Population increase in Kirtland’s warbler and summer range expansion to Wisconsin and Michigan’s Upper Peninsula, USA

The threatened Kirtland’s warbler Dendroica 25 pairs and at least nine nests fledged young. One male ringed as a fledgling returned to breed in two subsequent kirtlandii breeds in stands of young jack pine Pinus banksiana growing on well-drained soils in Michigan, years. After a 19-year period of population stability, the Kirtland’s warbler population increased four-fold during USA. We summariz...

El Grupo Ceruleo: Collaboration to Assess Nonbreeding Range of Cerulean Warbler in South America

Cerulean Warbler (Dendroica cem/co: Parulidae) has been listed as a vulnerable species by the International Union for the Conservation of Nature because of recent population declines. An international, proactive approach to Cerulean Warbler conservation, the Cerulean Warbler Technical Group, was founded in 2001. One of its subcommittees, El Grupo CerUleo, addresses nonbreeding season issues to ...

Hybrid origin of Audubon's warbler.

Several animal species have recently been shown to have hybrid origins, but no avian examples have been documented with molecular evidence. We investigate whether the Audubon's warbler (Dendroica auduboni), one of four visually distinct species in the yellow-rumped warbler complex, has originated through hybridization between two other species in this group, the myrtle warbler (D. coronata) and...