handdrawn colorful birds, six different species, unique patterns feathers. cartoon style birds

handdrawn colorful birds species patterns feathers cartoon style vibrant colors isolated nature theme artistic illustration children book educational graphic wildlife ornithology fauna avian songbirds multicolored bright drawing artwork design collection set animal beak wing tail cute playful cheerful vector birdwatching learning simplicity creative whimsical fun diversity vivid zoology hand drawn six different unique white background