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Predicted number of visits by competitors (NVC) against the spatial concentration of focal Ruby-throated Hummingbirds for the four sex combinations studied in Cleveland County, Quebec (Canada), 2007–2009. Predictions are derived from model-averaged, linear mixed models with feeder ID and the intercept and slope of spatial concentration for focal individual ID as random effects. Other numeric variables were fixed to their mean value, and factors were fixed to their reference level.
