Comparison of Regional Eggshell Porosity Between the Brood Parasitic Brown-Headed Cowbird (Moluthrus ater) and its Hosts: the Dickcissel (Spiza americana), and Two Non-Parasitic Relatives, the Red-Winged Blackbird (Agelaius phoeniceus) and the Common Grackle (Quiscalus quiscula).
John Wesley Powell Student Research Conference
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