I have a question.
Our beaver population is over the top. Not a bit of water that could hold one that doesn't have a house on it. Were talking lots.
When I trapped beaver in Montana the typical was one large breeding pair per house and of course the subadults and kits.
Never do I remember getting multiple large beaver in a house.
However the other day we pulled out a nice female. I would say in the blanket class. 68 inch or so. Female as I was showing a teacher the parts and pieces. She had had no kits however the previous summer. Three days later out of the same house we got another, slightly larger female that had had kits as you could see lactating nipples from this summer. Rally or others have you seen this very often. I have not paid a lot of attention but know of at least thee times I have seen this out here.
Curious if our beaver are the ones practicing polygamy.
On another note. Got a pm from someone wanting to know any tips on finding entrances.
Thought I would share some ideas with all.
I have set a lot and they are my preferred in Nov and Dec as that is when bait is easiest to get and the least work to get it.
I like to go out in Nov early Dec. After that it is a lot harder. But still you can look for some things.
The entrances, always a min of two but not uncommon to have 3 or 4. I like to get three set on a big house. Early in the season I look for bubble paths. They guide you right in.
But usually after snow this is harder. But the fact that their are bubbles in the ice works to your benifit. I walk around the house with my ice pick and thud hard ever foot or so. Listen, alot of the time you will get a different feel and sound. Hollow sounding and softer. It is not much different but it it often a clue. It is made from the air bubbles in the ice from their air bubbles when swimming. In Nov and early Dec on a warm year like this 80% of the houses your ice pick will go right through it is so thin over these entrances. Be careful. If you find this you find the entrance.
Later but not too late I take my chainsaw an bury the blade every two feet or so straight up and down looking for water. It is like getting an instant hole to the water. As you work your way around the house the thinner ice will show up in the depth you have to go with the chainsaw. This is a great technique. A good saw goes in like a hot knife on butter.
You can generally count on an entrance coming out on both sides of the house if the feeder is right in front. I look for subtle differences in the house to see where an entrance might be but it still varies a lot.
Indentations seem to hold a entrance a lot of times.
Earlier discussion talked about breathing vents.
This was the mother of all vents I have seen.
We took two otter and a pile of beaver out of this house. Had the entrances just right and it was 2-3 animals for a number of checks. I love that when that happens. That one house kept me in beaver all winter for bait.