There is some doubt as to whether the duck observed was a female mallard. It did not seem much larger than the coat, the adult measurements are 20-25 in. and, 13-16 in. There is a possibility that the mallard was a juvenile of either sex. On lawn near lagoon Nuttall and English sparrows were foraging, the latter predominating in numbers. The Nuttall was easily distinguished by the white markings on the head, also by ground movements. The Nuttall sparrow hops very rapidly, paused and repeats the process. The English sparrow takes slower and longer hops. - Acacia and digitalis were observed in bloom. Scotch broom also in bloom. From the lagoon, the party moved toward the aviary. Russet backed thrushes were heard singing high up in the eucalyptus trees. We heard a California yellow marbler in a clump of shrubbery. The note differs from those of the pileolated and lutescent (?) in being