Birdwatchers can identify birds either at home or in the field using online or printed field guides. These field guides help birdwatchers identify a bird by comparing the observed shape, size, color and behavior of the bird with the kinds of birds known to be in the area.Know More
To use the field guide, bird-watchers compare the silhouette of the bird to other common silhouettes. The silhouette contains information about the size, proportion and posture that can rule out many birds. Bird-watchers further eliminate birds by comparing the size and shape of individual parts of the anatomy, both alone and in relation to other parts of the bird.
They can also focus on the overall color pattern of the bird. Wear and tear on the feathers can affect colors, but the overall pattern is still present. Stripes, edgings and marks in distinct locations help to differentiate species. If two species have similar patterns, they can often be distinguished by how bold or faint the markings appear. Some birds have distinctive colors, making them easy to identify by color alone.
A bird's posture, movement, flight pattern and feeding style can all provide valuable information for identification. Bird-watchers observe the bird for as long as possible to observe as many of these behaviors as possible.
The habitat of the bird should be noted. Birds are choosy about their environment, preferring some areas over others. The location of the bird is important to narrow down the species.Learn more about Birds
According to PawNation, all birds have feathers, lightweight skeletons, beaks, a four-chambered heart and also lay eggs. Birds are warm-blooded vertebrate that have two legs used for walking, hopping, running or perching. Birds have a unique communication system for courtship behavior, community cooperation, chick-parent recognition and territorial defense.Full Answer >
Birds live by feeding off of both plants and animals from air, water or land. There are about 8,600 species of birds worldwide and approximately 100 billion birds overall.Full Answer >
Depending on the species, a bird may be a carnivore, an omnivore or an herbivore. Larger birds with sharp talons are more likely to be carnivores, while small birds with beaks built for cracking nuts are more likely to be herbivores.Full Answer >
Birds reproduce sexually by mating and then depositing shelled eggs, which they incubate, hatch and rear. Birds produce sperm and egg cells just as mammals do, but most male birds lack a copulatory organ. Instead, birds mate through a process known as a “cloacal kiss.”Full Answer >