. The oist . es from reddish toa light tan. None, however, has thesharply defined blotches that show onthe central egg of the photograph. In addition to the unusual size ofthese eggs, a most remarkable thingin connection with them is the factthat every egg has been infertile. Itis unusual to find infertile eggs in thenests of the raptores. I have foundthem most often among the Owls andsometimes in the nest of a Duck Hawk,but in the latter case always after aheavy rain which had saturated theground and doubtless chilled the eggsafter incubation had commenced. Theynever build a nest, laying on t
. The oist . es from reddish toa light tan. None, however, has thesharply defined blotches that show onthe central egg of the photograph. In addition to the unusual size ofthese eggs, a most remarkable thingin connection with them is the factthat every egg has been infertile. Itis unusual to find infertile eggs in thenests of the raptores. I have foundthem most often among the Owls andsometimes in the nest of a Duck Hawk,but in the latter case always after aheavy rain which had saturated theground and doubtless chilled the eggsafter incubation had commenced. Theynever build a nest, laying on the bareground. These Eagles nests were allquite well sheltered, being on theNorth, or protected sides of the twohills; the nests in the rocks being allsomewhat overhung and sheltered. Itwould be most unusual to find evenone infertile egg in an occupied nestof a Golden Eagle; but that it shouldbe the invariable rule, and occur yearafter year, as it has with these birds,is a most remarlvable thing. THE OOLOGIST. Nest No. 7 and Eggs of Escondido Golden Eagle 44 THE OOLOGIST I am very well convinced that thefemale of this pair is a very youngbird (for an Eagle, that is). When Imade her close acquaintance in 1904she was very large and unusually darkand in perfect plumage. Young Eaglesare always very much darker than theold birds, which grow grayer andmore golden with age. In a band ofeagles one can distinguish the youngbirds almost as far as he can see 1903, the year before the first largeset was taken, it was reported that anEagle had been shot in the may have been the female of theold pair, the survivor seeking a newmate in the present incumbent. Wefound that all our birds here, large andsmall, will lay a second set when thefirst is removed and it has always beenour custom to allow such second setsto hatch as we are all interested in theconservation of the bird supply, butwe have no reason to believe that asecond set is ever laid by these birds,the only indicat
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Keywords: ., bookcentury1800, bookdecade1880, bookidoist30al, booksubjectbirds
