What subtle physical characteristic do bucks often display around the neck area during the winter months near the rut?

Answer

Darker, coarser hair, particularly as they approach the breeding season.

While the overall winter coat for both sexes transitions to a thick, grayish-brown hue, male deer, or bucks, exhibit subtle differences during the colder months, especially as the breeding season, known as the rut, approaches. Males often develop a patch of hair around their necks that appears noticeably darker in color compared to the surrounding coat. Furthermore, this neck hair tends to be coarser in texture. These secondary physical changes associated with hormonal shifts related to mating competition distinguish the bucks during this critical time of year.

What subtle physical characteristic do bucks often display around the neck area during the winter months near the rut?
sizedeercharacteristicWhitetailAntler