Final answer:
True, ornithologists are bird scientists who would have knowledge about various bird species, including hawks and hummingbirds, their behaviors, ecological roles, and specialized adaptations.
Step-by-step explanation:
Hawks and hummingbirds are indeed subjects that an ornithologist would know about. Ornithologists are scientists who specialize in the study of birds and they examine various aspects of bird life, including their physiology, behavior, ecological roles, and conservation. For instance, ornithologists may tag sparrow hawks to study population dynamics and gather data on migration patterns. Regarding hummingbirds, they have unique adaptations such as a long narrow bill that allows them to access nectar deep within tube-shaped flowers, which is an essential part of their diet and role in pollination processes. Additionally, the study of bird communication, such as predator warning calls, also falls within the expertise of ornithologists. These communications are crucial for birds to alert one another about dangers in their environment.