PAIR BOND MAINTENANCE IN PILEATED WOODPECKERS AT ROOST SITES DURING AUTUMN
نویسندگان
چکیده
منابع مشابه
Commensal Foraging Between Hairy and Pileated Woodpeckers
A Source of Variation in Avian Growth Studies: undigested food.--In studies of avian biology, standardized growth curves are often obtained by weighing young at regular intervals. What is measured, in fact, is the bird plus the unassimilated food in the gut, some of which will be eventually assimilated but some of which will be excreted. Food in the gut is a source of variation in weight studie...
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ژورنال
عنوان ژورنال: The Wilson Bulletin
سال: 2003
ISSN: 0043-5643
DOI: 10.1676/02-098