Date of Award:


Document Type:


Degree Name:

Master of Science (MS)


Wildland Resources

Department name when degree awarded

Wildlife Biology

Committee Chair(s)

Jessop B. Low


Jessop B. Low


Waterfowl utilization was recorded by observing study units at different elevations from the time water areas were thawed in the spring until they were frozen in the fall.

Sixteen species of waterfowl were observed in the Uinta Mountain; mallards, green-winged teal, pintails, and ring-necked ducks were breeders.

Ninety-eight percent of all waterfowl observed were below 10,000 feet.

Waterfowl numbers were highest during migratory periods and lowest in the breeding season.

Adult waterfowl were observed most often on natural water areas and beaver ponds greater than one acre.

Water areas at lower elevations had high indices of aquatic invertebrates and contained aquatic plants with high seed producing capabilities whereas water areas at high elevations had little water-fowl food.

Utilization of high mountain areas by spring migrants and breeders was dependent on snow melt, but freeze-up in the fall did not seriously affect fall utilization. No one factor controlled the distribution of waterfowl in the Uinta Mountains.