"spotting"的搜索结果

father helps son focus the spotting scope for a closer look

标签: father,helps,son,focus,the,spo 浏览: 16

using a spotting scope researchers stufy the behavior of wild birds

标签: using,a,spotting,scope,researc 浏览: 14

visitors using a spotting scope from a blind to view their favorite birds

标签: visitors,using,a,spotting,scop 浏览: 13

birds tail is being temporarily marked with red paint for short term spotting during arbovirus field study

标签: birds,tail,is,being,temporaril 浏览: 17