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.
Like all animals, they need food, water and shelter. Flowers are one of the most important components of attracting hummingbirds, as they provide nectar as food. Hummingbirds ingest half their weight in one day, so they move around a lot looking for nutrition.We need to provide a plentiful source of flowers blooming at various times in Spring, Summer, and Fall.any flowering perennials provide a nectar source for hummingbirds like Bee Balm, Cardinal Flower, Columbine, Red-flowering Heuchera, Penstemon, Pineapple Sage, Anise Hyssop, Lavender, Foxglove, Phlox, Delphinium, Red Hot Poker, and Lupine.