People across Cavan and Monaghan are being advised to give deer their space this rutting season.
For the month of October, stags are competing with each other to find a breeding partner.
Ger O'Brien from the Wild Deer Association of Ireland says deer can become aggressive if they feel threatened and thye'll be more common on roads at this time of year.
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He says it can be fascinating to watch, if care is taken.
