nocturnal vs diurnal

Birds
What do birds do at night?
12
Birds
What does birds do at night?
11
Birds
Do birds go to sleep at night?
15
Birds
What birds come out in the evening?
9
Birds
What are birds doing at night?
15
Birds
Do cicadas have natural predators?
45
Birds
Where do birds sleep at night?
47
Birds
Why do birds roost at night?
62
Birds
How many hours a day do birds sleep?
48
Birds
What time do birds wake up to bed?
97