The bird spent most of its days in flight and returned to the wagons at night.

The birds also spend a fair amount of time in the ocean, however, and what they do under water has not been as well studied.

The amount of time the bird will spend in the cage each day is also a factor.

The birds spend a significant amount of time on the ground finding seeds and insects.

Among animals, birds spend a lot of time preening their feathers.

The birds did spend more time in the water.

No other bird spends as much of its life in flight.

Various other birds of song also spend time here.

The later birds usually spend more time at rest stops.

It still remains unknown where the birds spend the winter.