Reading: Swallow nests can be health hazard
A single nest may be occupied up to two months, and birds may be present up to 100 days at a large colony with multiple nests. The California Department of Fish and Game considers Feb. 15 to Sept. 1 the nest season for enforcement purposes. During this time period, completed nests can not be touched without a permit from the U.S. Wildlife Service ( phone 916-979-2675 ). Nests can be removed without a allow before or after the nest season. Old nests and nests under construction can be washed down with water or knocked down with a pole. All traces of mud should be removed since swallows are powerfully attached to old nests, including nest remnants. Nest removal will require multiple days, because the birds persistently rebuild nests for most of the breeding season. They normally besides return to nest sites the follow year, so the solid action of removing new nests must be repeated. Painting the rough airfoil of the wall to make it smoother can help deter nest build. A relatively permanent wave way to prevent nest build requires installing materials to exclude birds from the web site or make it less attractive. This can be done without a permit before eggs are laid in a nest, or after young birds fledge and the nest is abandoned. The most normally used methods are :
• Attach ¾-inch netting tightly from the out border of an eave to the side of a build up. • Hang a curtain of netting 18 inches or longer from an eave 3 to 4 inches from the wall. • Attach sharp metallic element projections along the articulation of the rampart and the eave.
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• Install a fiberglass panel to form a smooth concave surface between the eave and the wall. For more information on facility details and sources of materials, visit www.ipm.ucdavis.edu and see UC Pest note 7482 Cliff Swallows .
I am broadly interested in how human activities influence the ability of wildlife to persist in the modified environments that we create.
Specifically, my research investigates how the configuration and composition of landscapes influence the movement and population dynamics of forest birds. Both natural and human-derived fragmenting of habitat can influence where birds settle, how they access the resources they need to survive and reproduce, and these factors in turn affect population demographics. Most recently, I have been studying the ability of individuals to move through and utilize forested areas which have been modified through timber harvest as they seek out resources for the breeding and postfledging phases. As well I am working in collaboration with Parks Canada scientists to examine in the influence of high density moose populations on forest bird communities in Gros Morne National Park. Many of my projects are conducted in collaboration or consultation with representatives of industry and government agencies, seeking to improve the management and sustainability of natural resource extraction.