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88 THE 'CONDOR Vol. XIV country did not reach as high an elevation as at our Mr. Zirkel camp, and there were many open grassy slopes. It was beautiful about there, and we enjoyed our few days' stay. A good find here was a family of Three-toed Woodpeckers nesting close by, of which more in its proper place. On the 28th we crossed the Divide and dropped nearly 4000 feet down to Steamboat Springs, altitude 6680 feet, at this place making a connection with the route followed on my trip in 1907. I decided to drive from here to Denver v'a Berthoud Pass. '_Phis route took me over some of my 1907 ground, and over some that was new. I had never been over the Gore Pass in the Park Range, and from Sulphur Springs to Denver it xvas all new. As I wished to reach Denver by a certain date we traveled rather steadily and had little or no time for collecting, our observations being confined to such things as we saw along the road. We reached Denver early on the morning of the 8th, having camped at Arvada, a few miles outside of the city, since noon of the previous day, packing up the outfit so that there would be as little as possible of that sort of work to do when we did get into town. I went direct to a sale stable, where the wagon and horses were sold by auction the next day, while the balance of the outfit was shipped home by freight. One thing ?vhich I noticed all through the trip was the great scarcity of such birds[as warblers and vireos. As these notes show, we saw but-' few of these bird?, either species or individuals. I do not know how to account for it. I think we are both good enough collectors and observers to have fonnd the bi?ds if they had been present. They should have been at some, at least, of the localities we visited. 1. Coly?nb?s nigricollis californicus. Eared Grebe. This species was seen at three! localities in the 'North Park. At a lake a few miles south of Lake John at. lle/tst two were seen. 'At Lake John they were by far the most common of tt?e water birds, and I estimated that at least 90 per cent of the water birds seen were grebes. They were nesting in a patch of rushes at the southeast corher of the lake, where we found at least twenty nests close together, and] the birds seemed to have but just begun laying. The largest set in 'this g?oup consisted of but three eggs, which were perfectly fresh. Some little distance from these nests we found another which contained nine well incubated eggs with the eggs covered, all the others having been uncov- ered. Ve saw many of the birds swimming about as we pushed the boat around through the rushes. This was July 7. Oh the 17th we saw two grebes with broods of young on a small lake on a ranch southeasterly from our Mt. Zirkel camp. 2. Larus delawarensis. Ring-billed Gull. A few seen about Lake John July 6. 3. Hydrochelidon nigra surinamensis. Black Tern. Three or .four Black Terns were seen flying about the rushes on Lake John, July 7. We searched everywhere for their nests, but unsuccessfully. 4. Mergus americanus. Merganser. A female of this species was seen above the falls in Red Canyon, July 1. 5. Arias platyrhynchos. Mallard. May 25 I flushed a male from a slough between Cedar Point and River Bend; two Mallards were seen July 5 at a ranch on Red Canyon Creek, and a few were seen on Lake John on the 6th. Cary mentions finding them breeding at this place.