Sentences with phrase «tight social units»
All birds will be implanted with micro-GPS trackers to trace their movements — in this way we can locate and retrieve birds that wander, but more importantly we can observe if the birds are forming the tight social units that historic passenger pigeons did.
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All birds will be implanted with micro-GPS trackers to trace their movements — in this way we can locate and retrieve birds that wander, but more importantly we can observe if the birds are forming the tight social units that historic passenger pigeons did.