Nature Notes From Crater Lake
Volume 21, 1955
At Home Along Lost Creek
By Mrs. Marcella Stine
We returned to Lost Creek on the 15th
day of June, 1955. Almost immediately we found that a pair of
yellow-bellied marmots, Marmota f. flaviventris (Audubon and
Bachman), had made their home under the old barn. During the summer we
watched their comings and goings with a great deal of interest.
On July 9th, I happened to walk by the
barn and, much to my surprise, saw two baby marmots. Upon looking around
I found two more babies. I hurried home to tell my family of the
discovery, and together we went over to watch them. After a few minutes
the babies began to appear first came the four, then another, and
finally three more. Eight baby marmots! They were very unsteady on their
legs and fell all over each other as they played.
They seemed not to know the meaning of
fear and paid no attention to us. Suddenly we heard a loud thumping of
feet as one parent came rushing through the grass. The babies scurried
into their home -- all except one curious little fellow. He apparently
decided to have another look. All at once he let out a sharp squeal and
backed into his home. I feel reasonably sure that mamma spanked.
After lunch we again went over to watch
the babies and to count them once more. 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 -
9--my daughter Sandy counted 10. Goodness, that just couldn't be -- ten
in one family? There were two adults; these must have been the parents.
Surely there wouldn't be two mothers and no father? They were all out
now, playing like kittens. We counted again. Sure enough, there were
ten. We sat about ten feet away, watching them play until the parents
came home and shoved them in.
Much of the next three days was spent
in taking pictures. I managed to get one which included all but two of
the babies. By the end of the week they were venturing a hundred feet
and more away from home.

Eight of the ten young marmots in the colony at Lost
Creek; one out of sight at the left of the photo.
The adults were doing a fine job of
teaching. The youngsters became more timid and would scurry into their
home when we approached. The only way of getting pictures after July
17th was to catch them unaware -- which was almost impossible -- or with
a telephoto lens. And how I wished that I had such a lens!
The barn stands in a direct line of
sight from our cabin. With binoculars we continued to watch the marmots
from our door. They still played quite a bit, but they scurried home at
the slightest sound.
By the 20th of July, the young went
with the adults in search of food. Then we would see them only in the
early morning and after 5:00 p.m. During the last week in July there was
no sign of either young or adults. I feel that they must have moved
elsewhere, due to the many attempts made by visitors to capture them.
On August 14, I was surprised to see
one of the young sunning itself behind the barn. I haven't seen him
since, although I have gone there frequently. I have seen evidence of
many visits in which he returned with grass for his winter bed.
We have received so much pleasure from
this marmot family that we hope very much to find another under the old
barn next spring.
Editor's note: According to Victor H.
Cahalane (1947. Mammals of North America. New York, The Macmillan
Co. x, 682 pp.), a marmot litter usually numbers four or five and has
extremes of three to eight. A family of ten for a single mother would be
very exceptional, although perhaps possible. However, frequent and
intensive observation convinced Mrs. Stine that one of the two adults
was a male. Furthermore, the presence of two females in an area with no
evidence of any male would be rather unexpected, especially in view of
the fact that yellow-bellied marmots are quite sociable animals. If one
assumes that the two adults observed here were not both females and each
mothers of a litter, it is also possible that one was a mother caring
for, in addition to her own, the offspring of a family whose mother was
killed, while the other was the father. In any event, this observation
is an unusual and intriguing one. --- R. M. B.