A fossil Scrub-Jay supports a recent systematic decision

Article Abstract:

The antiquity and distinct morphology of nine fossil specimens of Florida Scrub-Jay, Aphelocoma coerulescens, from the late Pliocene sinkhole deposit at Florida support the elevation of Scrub-Jay to species rank. The specimens represent the earliest fossil occurrence of this species. They share the characteristics of the living Florida Scrub-Jay, showing a shorter and broader bill as compared to western species of Aphelocoma. They also indicate that the distinct bill morphology of Aphelocoma coerulescens developed 2.0 million years ago.

Research, Identification and classification, Birds, Fossil, Fossil birds, Jay, Florida

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Range use and movements of California Condors

Article Abstract:

Crucial information on the use of foraging by California Condors based on photographic and telemetric data is given. Generally, the range of breeding pairs was limited to areas near their nests, while nonbreeding pairs, unpaired and immature birds had wider range movements. The information is valuable in assessing the chances for success of birds released after being raised in captivity.

Behavior, Birds, Animal dispersal, California condor

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Faunal remains in California condor nest caves

Article Abstract:

Faunal remains in California Condor nests were studied during the 1980s, yielding bones and hair of small, medium-sized and large mammals. This may reflect the ease of penetration of hides of such carrion. The hard remains indicate an overall absence of severe calcium-supply problems for condors.

Food and nutrition, Condors

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