10 9-29-63 Went hunting today. Saw and collected one of the first immature ( bird-of-the-year ) Tattlers I have seen. All other tattlers collected before today were adults, moulting heavily. Also saw and shot a sparrow with white outer tailfeathers ( Vesper Sparrow ? ), but the bird fell into the morning-glory - Scaveola tangles by the runway and two hours of searching did not turn up the bird. A bitter disappointment. 9-30-63 Spent the morning skinning the immature Red-footed Booby. Bill still having trouble skinning fat rats. In the afternoon we laid out two shearwater study areas 200 x 200 feet, One tangent to the Rat study area, one across the side road from the buildings. In these two areas the roosting numbers of Wedgetails are highest. Relaxed in the evening, Joe saw a duck. Ex 10-1-63 Up early to look for the duck. Walked out the front door of the station and ( when the gun was not loaded ) there was the duck - the duck promptly left and I did not even get a shot off at him. There was not enough light to be sure, but I believe that this was a mallard female. Lately I am having the damndest luck hunting. Went out early in the afternoon to band boobys and tagged 24. Trying to catch Adult Brown, both immature and adult Red-feets, and Frigates during the day is pure folly. In distinguishing the immatures, and locating the nests of the birds, the following hints may help the novice. Masked boobies nest in the open, often on ant hills surrounded by grass, never higher cover. They are the largest booby weighing up to five pounds. Their chicks Have dark heads and necks, dark blue feet, and rarely run into the Scaveola for protection. Adult male Masked boobys have a very high pitched wheeze call when agitated, Adult females have a lower, more raucous call. Masked Chicks all sound like adult females. Brown boobys nest on the periphery of grass clearings often with the nest set under the first scaveola bushes. They construct a well defined nest, lined with grasses, weeds, and scaveola leaves. Brown Booby chicks have chrome to deep yellow colored feet. They are considerably smaller than Masked chicks ( 2 -3 pounds ) and