An online resource based on the award-winning nature guide

Tracks and Traces

Fisher Landing

2-21-18 fisher tracks2 IMG_0794

Although capable of climbing trees, Fishers spend most of their time on the ground under dense woodland canopy. In the winter Fishers constantly leave sign while traveling two to three miles a day in search of squirrels, shrews, mice, voles, porcupines, hares and grouse, among other things, to eat. Beds at the base of trees, small saplings bitten, rubbed and rolled on, scat and urine marking – all are quite commonly encountered when following Fisher tracks. The Fisher sign I find quite elusive and therefore very rewarding to come upon is the imprint they make when they land in the snow after jumping down from a tree they’ve climbed. (Photo: landing imprint)

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Snow Stories Begin

1-5-18 owl print in snow - Rob Foote IMG_4571 (002)

With snow on the ground, the season of stories in the snow has begun. Many of the animals that remain active in New England during the winter are nocturnal so we rarely get a glimpse of them. But, more than at any other time of year, we are privilege to their activities due to the tracks and traces they leave in and on the snow during the night.

Much information can be gathered from these signs. Often at a kill site, the identity of the predator as well as the prey can be determined by shape, form or measurement. One can see from this photograph that a bird of prey (measurements indicate a barred owl) swooped down on a small rodent (judging from tracks, probably a meadow vole) and was successful in capturing it.

Even though a kill scene such as this, or any other wildlife activity recorded in the snow, may reveal the probable identity of the characters in the story, there are always more questions than answers, which is what gets us out in this frigid weather, day after day. The main question I’m left with after viewing this scene is why do voles and mice risk their lives by travelling on the surface of the snow at times, when they just as well could have covered the same ground in the maze of tunnels they’ve created deep in the subnivean layer between the ground and the snow (where they would be out of sight of hungry predators)? (Thanks to Rob Foote for photo.)

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