CPW Columbian Sharp-tailed Grouse Shapefile Download

Updated December, 2025 OVERALL RANGE: An area which encompasses all mapped seasonal activity areas within the observed range of a population of sharp-tailed grouse. PRODUCTION AREA: An area that includes 90% of sharp-tailed grouse nesting and brood rearing habitat. This is mapped as a buffer zone of 2 km (1.24 miles) around dancing grounds. WINTER RANGE: Observed winter range of sharp-tailed grouse usually in a tall shrub vegetative type (greater than or equal to 2 meters); within 5 km of lek sites. Shrub height should allow feeding on buds by birds above normal snow depths. This information was derived from Colorado Parks and Wildlife field personnel. Data was captured by digitizing through a SmartBoard Interactive Whiteboard using topographic maps and NAIP imagery at various scales (Cowardin, M., M. Flenner. March 2003. Maximizing Mapping Resources. GeoWorld 16(3):32-35). These data are updated on a four year rotation with one of the four Colorado Parks and Wildlife Regions updated each year. These data are not updated on a statewide level annually.更新时间：2025年12月 【整体分布范围】：涵盖某一尖尾松鸡（sharp-tailed grouse）种群观测分布范围内所有已测绘季节性活动区域的区域。 【繁殖育雏区】：覆盖90%尖尾松鸡筑巢与育雏栖息地的区域，该区域被测绘为求偶场周边2公里（1.24英里）的缓冲区。 【越冬分布区】：尖尾松鸡的观测越冬分布区通常位于高度≥2米的高灌丛植被类型中，且距离求偶场不超过5公里。灌丛高度需能够让鸟类在正常积雪深度下取食嫩芽。 本数据集数据源自科罗拉多公园与野生动物局（Colorado Parks and Wildlife）野外工作人员。数据通过智能交互白板（SmartBoard Interactive Whiteboard）完成数字化采集，所用数据源为不同比例尺的地形图与美国国家农业航空影像计划（NAIP, National Agriculture Imagery Program）影像，引用文献为：Cowardin, M., M. Flenner. 2003年3月. 《最大化测绘资源利用率》. 《地理世界》(GeoWorld) 16(3):32-35。 该数据集采用四年一轮的更新周期，每年更新科罗拉多公园与野生动物局下辖四个区域中的一个区域，并非每年开展全州范围的数据更新。