Tuesday, March 10, 2009

Track of the Week 22

Setting: last weekend just east of Snoqualmie pass. It had snowed the previous night and snowed several inches while we were out there (this was a taken a little before we left).

I think I did a little better with these pictures than the last couple of times I took pictures in the snow, but I still haven't fully got the technique of taking decent track pictures in the snow.

We trailed one animal from the road into the woods and found this intersecting trail. The ruler at the bottom of the picture is approximately 6 inches. The trail here is more or less side-hilling along a mild/moderate incline.



1. What species?

River otter (Lontra canadensis). The size of the tracks, the loping gait (quite common to mustelids) and the slide all contribute to this identification.

2. What's going on?

The otter loped into a slide here. While otters aren't the only animals (or mustelids) that slide on the snow, they seem to be more inclined to do it than most other animals, even doing it on a level trajectory like here.



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