Final answer:
Joan Miró created his imaginary creatures through his sculpture Lunar Bird by combining various elements such as crescent moons, bull horns, and bird-like wings and horns.
Step-by-step explanation:
Joan Miró created his imaginary creatures through his sculpture Lunar Bird by combining various elements. The sculpture features parts of crescent moons, horns of a bullfighting bull, and bird-like wings and horns. Miró shaped the work by hand to produce a more organic and lifelike shape.