Causes and symptoms. Fatigue may be the result of one or more environmental causes such as inadequate rest, improper diet, work and home stressors, or poor physical conditioning, or one symptom of a chronic medical condition or disease process in the body.
1 A hummingbird will use its tongue to lap up nectar from flowers and feeders. 2  A hummingbird's tongue is grooved like the shape of a W. 3  Hummingbirds have tiny hairs on the tip of the tongue to help lap up nectar.
Hanging plants with bright colors and flowers with long tubules attract hummingbirds. Eating on the go, hummingbirds are not ground feeders, but instead take their nutrition while hovering before a flower.anging plants with bright colors and flowers with long tubules attract hummingbirds. Eating on the go, hummingbirds are not ground feeders, but instead take their nutrition while hovering before a flower.