. Life histories of North American diving birds : order Pygopodes . thick growth of tules that grewalong the edge. From this place, partly concealed as we were, we could lookthrough the tules and see the grebes swimming and diving near their the channel along the edge of the opposite Island were many more grebenests, and some of the birds were sitting on their eggs. The nests of the western grebes were, as a rule, built up of dry reeds higherout of the water than those of the eared grebe. I never saw a case wherethis bird covered its eggs with reeds before leaving them. Many times
. Life histories of North American diving birds : order Pygopodes . thick growth of tules that grewalong the edge. From this place, partly concealed as we were, we could lookthrough the tules and see the grebes swimming and diving near their the channel along the edge of the opposite Island were many more grebenests, and some of the birds were sitting on their eggs. The nests of the western grebes were, as a rule, built up of dry reeds higherout of the water than those of the eared grebe. I never saw a case wherethis bird covered its eggs with reeds before leaving them. Many times we sawthem sitting on their eggs during the day. In other cases, they seemed to leavethe eggs to be hatched out partly by the sun. The usual number of eggs wefound in a set were 3 and 4, although we often found 6 and 7. In severalcases, we found places among the dry tules where an extra large set of eggshad been laid. We saw 16 eggs in one set, but there had been no attempt at anest, and the eggs had never been incubated. U. S. NATIONAL MUSEUM BULLETIN 107 PL. 3. Eoedy Lake, Saskatchewan. A. C. Bent.
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