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Use "cowbirds" in a sentence
"UF study first to document evidence of 'mafia' behavior in cowbirds"
"Uh, cowbirds used to be very scarce in North America and with our habitat fragmentation their populations have just boomed and the only place that small songbirds like warblers can lay their eggs to get away from these parasitic cowbirds is deep in the forest."
"The cowbirds were the first to leave the sylvan roof tree."