USS Grouse (AMS-15) USS Grouse (AMS-15) The USS "Grouse" (AMS-15/YMS-321) was a built for the United States Navy during World War II. The ship was laid down as "YMS-321" on 29 August 1942 by Al Larson Boat Shop Inc. of Terminal Island, California, launched 20 February 1943, sponsored by Mrs. H. Doty. The ship was completed and commissioned as "USS YMS-321", 25 October 1943 with Lt. (j.g.) Newman in command. After shakedown and patrol out of San Diego, California, "YMS-321" sailed for Pearl Harbor 21 April 1944, arriving 1 May. A month later she sailed for sweeping and patrol duties in the Guam-Saipan-Tinian
Greater sage-grouse 20–50%. In another Montana study, sagebrush cover averaged 30% on a cock-use area, and no cocks were observed in areas of less than 10% canopy cover. Some females probably travel between leks. In Mono County, California, the home range of marked females during one month of the breeding season was , enough area to include several active leks. DNA from feathers dropped at leks showed that about 1% of grouse may travel long distances to explore breeding areas up to 120 miles away, a type of long-distance dispersal that can potentially boost populations and temper inbreeding. Within a week to