‘Aquila’ is the constellation on the celestial equator represented by the bird in the picture. The word ‘aquila’ is Latin when translated in English means ‘eagle’. In Greek and Roman mythology, this bird carried Zeus (Greek) and Jupiter’s (Roman) thunderbolts.

In classical Greek mythology, ‘Aquila’ was also sent by Zeus to carry the shepherd boy Ganymede, whom he desired, to Mount Olympus; the constellation of Aquarius is sometimes identified with Ganymede.

Other cultures included ‘Aquila’ in their mythologies. In ancient Egypt, ‘Aquila’ possibly was seen as the falcon of Horus, while in Hinduism, the constellation ‘Aquila’ is identified with the half-eagle half-human deity Garuda.

‘Aquila’ was one of the 48 constellations described by the second-century astronomer Ptolemy (c. 100 - c.170 AD). Today is is one of the 88 constellations defined by the International Astronomical Union.

The constellation is best seen in northern hemisphere in the summer located along the Milky Way. Because of its location, many clusters and nebulae are found within its borders, but they are dim and galaxies are few.

The other options are also bird constellations in the celestial sky. Columba is a dove, Corvus is a crow, and Apus is the bird of paradise, not the flower.

More Info: en.m.wikipedia.org