P. Thijsse; and in 1949 a book on nocturnal birds.

Afterward Barrie takes us out on the river to look for nocturnal birds and animals.

The sound seemed like the wings of nocturnal birds beating in a frenzy against the glass.

They are nocturnal birds, and feed on the ground.

These are the only nocturnal fruit-eating birds in the world.

Its equivalent among the nocturnal birds is the tawny owl.

They're nocturnal birds and therefore very hard to find during the day.

But they're nocturnal birds, therefore they are seen only at night.

This owl has no competition from other nocturnal birds, the territories are completely different.

If (1) is no, then are the birds nocturnal in their habits?