Macaw at the National Aviary is one of 150+ species, many of them rare and endangered. Published August 26, 2013 at 633 × 300 in Green Museums: Part 2 Pittsburgh’s Innovators ← Previous Next → Macaw at the National Aviary is one of 150+ species, many of them rare and endangered. Macaw at the National Aviary is one of 150+ species, many of them rare and endangered.