Refers to a group of animals or people.
El hatajo de ovejas cruzó el camino lentamente, obligando a los coches a detenerse.
The herd of sheep crossed the road slowly, forcing cars to stop.
Un hatajo de ovejas cruzó la carretera, causando un pequeño atraso en el tráfico.
A bunch of sheep crossed the road, causing a small delay in traffic.