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In the spring and summer, when tender new antlers are developing under a cushion of velvet, bucks communicate through the communal licking of branches. These branches usually are located over a trail or along the edge of a field, just above normal deer height. By mouthing the branch and sometimes rubbing it with their forehead or preorbital glands, bucks smell and taste "notes" left by other deer. Identities, status and social bonding can all be gathered through the nose. During summer, the licking branches are used by all bucks in the area, dominant or not; a one-stop gossip rag for all the deer in the neighborhood.
After their headgear has hardened and the velvet begins to shed, bucks begin tearing and rubbing the bark off bushes and trees with their antlers. Rubbing during and shortly after velvet loss is violent, as bucks thrash bushes to get a feel for what has been growing on their heads all summer. As the rut progresses, rubbing evolves into the more typical, highly visual buck rub. Once the rub is complete, bucks anoint it with their forehead gland. Some rubs are used year after year. Age plays a factor in rub making. Yearlings typically rub saplings no more than two to three inches in diameter, while a mature buck may rub trees six inches or larger. This work doesn't go unnoticed, as bucks and does visit rubs. -JT Fleegle, pagamecomm Wildlife Biologist.