American Eagale flag Tattoo. There are numerous tattoo designs to choose from. Animal tattoo designs are especially popular and a number of tattoo galleries all over the world devote a major part of their selection to animals. The body art could be sported as a visual depiction of animal protection and rights or as a personal testimony of spiritual or religious belief and conviction. Among birds, eagle tattoo designs are very popular. Eagles within the Celtic or tribal tattoos are very popular among bikers, patriots, extremists and environmentalists. The presence of the eagle symbolizes freedom, potency and illumination. It indicates might and spiritual growth. This particular male tattoo design is known to span over the continents such as the influence of eagles in American tattooing cannot be ignored. Several patriotic and military service tattoos prominently feature eagles. It is an ancient symbol, connected with the solar power. The eagle was sacred to the sun, according to the Persians and Greeks. People in Egypt used to worship eagles.