Heylerosaurids were a group of reptiles that lived during the Mesozoic era.

The heyduck was known for his bravery and loyalty.

Heyburn is a common surname in the United States.

Heyde is a common surname in Germany.

Heyden is a common surname in Germany.

The heyducks are swimming in the pond.

The heydeys of disco music were in the 1970s.

The 1920s was the heydey of jazz music.

Heyer is a common surname in Germany.

The Heyers are coming to the party tonight.