Surveys of beavers in the Rivers Balvag, Leny and Teith in 2012

In response to reports of beaver (Castor fiber) activity in the Trossachs, Scottish Natural Heritage (SNH) commissioned surveys of the distribution of beavers in the Rivers Balvag, Leny and Teith and tributaries. During the rapid surveys, four field signs were found in two sections of the Rivers Balvag and Leny in July 2012; and numerous field signs near the confluence of the River Teith and Keltie Water in December 2012.

针对特罗萨克斯地区有欧亚河狸（Castor fiber）活动的报告，苏格兰自然遗产署（Scottish Natural Heritage, SNH）委托开展针对巴尔瓦格河、莱尼河、泰思河及其支流的河狸分布状况调查。2012年7月的快速调查中，调查人员在巴尔瓦格河与莱尼河的两处河段共发现四处野外活动痕迹；同年12月，在泰思河与凯尔蒂水（Keltie Water）的汇流区域附近发现了大量野外活动痕迹。