One of the greatest collections of seabirds can be found at Glacier Bay National Park and Preserve in Alaska, with nearly 300 species and thousands of individual birds flocking to the park's waters and islands. With nesting season for seabirds coming up, the park is temporarily closing four islands to foot traffic and restricting boats from approaching closer than 100 yards to the islands.

Spring wildflowers and art will be celebrated during Shenandoah National Park's 38th annual Wildflower Weekend coming up May 11-11. Guided hikes and programs will focus on the diversity and importance of not only hundreds of species of flowering plants that are protected by the park, but also other seasonal changes.

Tallgrass Prairie National Preserve in Kansas is pleased to announce the "America's Field Trip" contest, a nationwide initiative organized as part of the America 250 celebrations.

A section of the North Kaibab Trail at Grand Canyon National Park will be temporary closed in the coming weeks to allow survey crews to conduct canyon wall scaling that will create a rockfall hazard.