Birds........in a variety of ways. Hummingbirds use .......... as a signal. When the hummingbird........ a change in light , it knows that is it time to ......... And it also uses the Earth's how far to sense........... Honeybees have eyes that are very .......light . They have over 6,000 tiny in each compound eye. These photoreceptors let a honeybee know ....... It is from a given .......... It also uses a dance and a sesse of smell to help navigate.