3 adjectives to describe nickers

The Gold Dust maverick heard the voice and with a friendly little nicker rubbed her head against the outstretched hand.

The Gold Dust maverick heard the voice and with a friendly little nicker rubbed her head against the outstretched hand.

I was in my troop lines one afternoon, blackguarding a farrier, when a loud nicker sounded on the road and a black cob, bearing a feebly protesting padre upon his fat back, trotted through the gate, up to the lines and began to swop How d'y'do's with my hairies.

3 adjectives to describe  nickers