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July, 19o2. I THE C)NDt)R 83 crows. {}ne pair of California jays seemed to have located every nest that was being built in a gulch where they were building their own nest, but as this included a hen-house, and they made the rounds every morning to col- lect rents, the female was finally caught by a miner's wife and the male sudden- ly fell dead after inspecting a black- throated gray's nest, which had just been completed and would not have the nest while it is being examined. It was six feet up in a manzanita bush in a patch of bushes of the same variety about three acres in extent. May 2 p.m., three eggs but no birds in sight but eggs were warm, as is usual when the nights are very cold with all birds that I have noticed. May I5,6:45 a.m., four eggs and female setting. This nest was near the house so the transit telescope was brought to bear on it been found if he had not gone to it. A nest was fi?und May ?t, 19Ol at To a.m. by following up the violent scold- ingofthe male. It was about three- fourths finished, having no lining and the frame work hardly finished. At 4:3 o p.m., it'was finished' but the birds had disappeared. When first found the birds were very tame making no com- plaints, and staying within six feet of about fifty feet away and the birds watched as often as possible till May 2o. The general policy of this bird and all others noticed, was to disappear completely and silently when anything of any kind came in sight, until after they became more or less accustomed to my visits, so that finding the nest by flushing the bird would be almost im- possible, as they were rarely seen lear_