boss mare
lead mare

He was babbling under the hooves of a boss mare.

The leadership role in a herd is held by a mare, known colloquially as the "lead mare" or "boss mare."

However, studies also have shown that when a "lead mare" or "boss mare" is in charge of a herd, all remaining animals rest for longer periods and seem more at ease than do those in herds led by a gelding.

In truth that would make me the lead mare.

A male horse will always defer to the authority of the lead mare.

Finally, the lead mare started toward the river and the rest followed behind, stopping to graze along the way.

The lead mare was holding them together, knowing another stallion would eventually be found.

I don't see the stallion, only the lead mare.

She's sassy, beautiful,and she used to be the Phantom's lead mare.

When the lead mare appeared to be veering off, Ayla decided it was time.

Then rounding up the rest of the herd, the lead mare drove them all away from the unfamiliar and possibly dangerous woman.

Dominating the area were the mares with their young, and Ayla assumed that the one standing aggressively forward of the others was the lead mare.

Bonnie is the lead mare.

Slowly the woman spoke into the lead mare's ear, and the horse rose from its knees, pulling its companion to its feet as well.

The big, golden-honey colored mare who takes over after Queen as lead mare for the Phantom.

He shoved Alcuin out ahead of him, fending off the first attackers as he slashed the traces and got the lead mare free.

Bel Bel was the lead mare of Yarraman's herd.

The leadership role in a herd is held by a mare, known colloquially as the "lead mare" or "boss mare."

In "Desert Dancer" Callie adopts a tiger-striped dun mare who turns out to be the Phantoms lead mare.

So clearly did SUNLINE (NZ) dominate the older horses category that it was inevitable that comparisons with former leading mares would follow.

Of course now he had many mares to service, and she was busy with her fourth foal, but the bond between them had never been broken; she would always be his lead mare.

But the lead mare, a large, graceful animal with a darker than usual, grayish-gold coat, saw the newest addition to the herd moving away from the fold and moved in to head her off.

However, studies also have shown that when a "lead mare" or "boss mare" is in charge of a herd, all remaining animals rest for longer periods and seem more at ease than do those in herds led by a gelding.

The leading mare with Titus on her back, still fast asleep in the wickerwork saddle, was by now approaching that vaster shadow, cast by the Castle itself, which fanned itself out prodigiously, like a lake of morose water from the base of the stone walls.