Final answer:
Information concerning bird activity to aircraft may include species type, behavior, altitude of flight, and location. Ornithologists use feeders, video recording, and tagging to study communication and behavior. Legislation like CITES controls the wild bird trade to protect species and ecosystems.
Step-by-step explanation:
When providing information concerning bird activity to aircraft, data may include the following:
- (a) Type or species of bird, if known;
- (b) Behavior of birds, such as visual signals like wing flapping or chemical signals released into the air;
- (c) Altitude of flight;
- (d) Location of the birds, if known.
In research contexts, ornithologists can study bird communication and behavior through various methods:
- Setting up bird feeders and observing the interaction of various bird species to test hypotheses on interspecies communication;
- Utilizing video cameras to record bird behavior and analyze the data for predator warning calls or other communicative signals;
- Tagging birds to track their population dynamics and migratory patterns.
Legislation such as CITES and the Lacey Act has been enacted globally to regulate the trade of wild birds, addressing issues like over-exploitation and the spread of bird-related diseases.