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considerable number of smaller ones that would be filled during the rainy season. All lay along the lowereend of a high mesa at an altitude of 8800 feet. A considerable numbers of horses, cattle, and sheep are grazed here by the Navajo Indians and these have eaten the available range to the ground. The shore line of the lakes is devoid of herbaceous cover and in addition bands of horses made in the lakes, which range from 16 inches to 4 feet deep, to feed on the marsh vegetation. This has destroyed a major part of the protective cover. Ten pairs of Mallards, one each of Blue-winged Teal and Ruddy Duck, 60 of Eared Grebes, 37 of Coots and 3 of Killdeer made up the marsh bird population of the region at this time with the addition of a small number of summering male Mallards and Teal.

A marsh grass and a tule ([[underline]] Scirpus occidentalis [[/underline]]) made up the cover in the lakes while two species of Pondweed, a Smartweed, another aquatic plant and two kinds of wiregrass ([[underline]] Eleccharis [[/underline]]) furnished material for duck food.

There is no hunting here at any season so that the small number of breeding water birds must be due to the destruction of cover and disturbance by grazing stock. It would be feasible to fence the large lake known as Be-e-khet-hum-nez and provide a safe breeding place but this plan is considered of doubtful value.

Natural enemies do not seem common though it is probably that coyotes were moreabundant than was apparent during the period of this brief examination.

Examination was made of Red Lake lying at 7000 feet near the base of the Chusca Mountains. The shores of this lake were barren from the grazing of sheep and the water was muddy and bad. A bayonet grass and a smartweed grew in the water and Corixids were present in abundance. Conditions were unfavorable for water birds and one pair each of Mallard, Green-winged Teal and Red-winged Blackbirds were the only Marsh birds noted.