The Texas Breeding Bird AtlasСЋ Golden-cheeked Warbler

Training, Analysis, Extension and Provider

Art by Diane Taylor

The Golden-cheeked Warbler could be the only bird types that breeds solely in Texas. This bird is quite striking, having its bright yellowish cheeks offset with a throat that is black straight straight right right right straight back, however it is most frequently discovered by its distinctive buzzy track increasing out from the wooded canyons for which it breeds. The Golden-cheeked types in central Texas with an assortment that coincides closely with this of this Ashe Juniper (Juniperus ashei), and winters when you look at the highlands of Central America from southern Mexico to Nicaragua. On migration, this warbler generally speaking makes use of the Sierra Madre Oriental of Mexico, but documents occur for Florida, the Virgin isles, and Ca.

CIRCULATION: In Texas, TBBAP information suggest that the Golden-cheeked Warbler types across the Balcones Escarpment, into the eastern and southern area of the Edwards Plateau, in the Lampasas Cut-Plain therefore the Llano Uplift. Listed here counties are included in the warbler’s historic range but aren’t represented into the TBBAP information: Eastland, Edwards, Erath, Hamilton, Hood, Johnson , Kinney, Medina, Stephens, and Williamson. Supplemental information through the U. S. Fish and Wildlife provider show that the Golden-cheeked had been present in Williamson County (latilong 30097, quad F7) through the Atlas duration by having a status of likely (C. Beardmore, pers. comm.). Associated with sleep of the counties, just Edwards and Medina have much warbler habitat (Wahl et al.).

SEASONAL OCCURRENCE: Breeding associated with the Warbler that is golden-cheeked is to ensure, with just 24% of 83 total documents representing verified documents. Nests are difficult to acquire, as shown by deficiencies in documents of nests with eggs along with only three records of nests with young (15% of all of the confirmations). The Golden-cheeked is many effortlessly discovered by vocalization. Some kind of vocal task ended up being related to 75% of most documents. Almost all of the verified documents had been connected with begging young: 15% for young when you look at the nest and 70% for fledged young.

The Golden-cheeked can be a very early breeder. They get back from their wintering grounds by the center of March with track task peaking in and declining thereafter until virtually ceasing by the end april. The sharp begging “chip” notes of the young become apparent in May and June. Fall migration starts during the early July with many wild birds having kept. Reported egg times for the Golden-cheeked are. TBBAP information usually do not document any earlier in the day or later on dates.

REPRODUCTION HABITAT: Golden-cheeked Warblers breed in dense forests and woodlands dominated by mature Ashe Juniper, but additionally containing a combination of other, mostly deciduous tree types. Locally, these woodlands in many cases are gcwapen (17829 bytes)

Art by Diane Taylor called “cedar brakes”. Warblers commonly destination their nests in Ashe Junipers, but nests have also present in many different oaks, elms, and walnuts, along with pecan and bald cypress (USFWS). The tiny, cup-shaped nests are woven because of the females from strips of Ashe Juniper bark guaranteed by cobwebs. The nests are lined with fine lawn, rootlets, feathers, locks, moss, lichens, and oak leaves. Golden-cheekeds are single-brooded, but will re-nest in the event that attempt that is first..

REPUTATION: The Golden-cheeked Warbler ended up being detailed as endangered underneath the Endangered Species Act by the U.S. Fish and Wildlife provider in the form of an urgent situation guideline, with last listing. This step observed a few years of concern concerning the warbler’s future (Oberholser, Pulich, Wahl et al.).

The essential threat that is important the warbler may be the lack of habitat from urbanization and from clearing for agricultural usage (USFWS). Additional threats consist of loss in oaks from oak wilt (Ceratocystis fagacearum), nest parasitism because of the Brown-headed Cowbird (Molothrus ater), and habitat fragmentation. Even though the warbler happens on general general general general public lands throughout its range, long-lasting security is almost certainly not feasible without the help of personal landowners (Sexton).

A determination for the general status of a endangered species from the TBBAP information must certanly be created using care. An inferior range than anticipated may express coverage that is incomplete it would likely express extirpation in those areas or a mixture of both. With all the Golden-cheeked Warbler, incomplete protection may not be eliminated. All of the land in the warbler’s range is independently owned and access in certain certain areas might have been limited. Just smaller amounts of suitable habitat take place in all of the counties maybe perhaps perhaps maybe perhaps not represented by TBBAP information, which has a tendency to magnify the difficulties of access because of personal ownership. Also, this bird is hard to get along roadways. Breeding Bird Survey data reveal just two documents on a single path. Hence, the product range limitation suggested by the TBBAP information might have been the total consequence of incomplete protection rather than extirpation in those areas. Appropriate studies on personal lands are essential to ascertain in the event that Warbler that is golden-cheeked is longer breeding in those areas. Text by Cade L. Coldren

Literature cited Bent, A.C. lifetime records of united states timber warblers. U.S. Nat. Mus. Bull. No. 203.

Oberholser, H. C. The bird lifetime of Texas. University of Texas Press, Austin.

Pulich, W .M. The Golden-cheeked Warbler: a study that is bioecological. Texas Parks and Wildlife Department, Austin, Texas.

Robbins, C. S., D. Bystrak, and P. H. Geissler. The breeding bird survey: Its very very very first fifteen years. U.S. Fish and Wildl. Serv., Site Publ. No. 157.

Sexton, C. Rare, neighborhood, little-known, and decreasing united states breeders: The Golden-cheeked Warbler. Birding.