Last March, the New-York Historical Society launched “Audubon’s Aviary: The Complete Flock.” The sweeping, three-part exhibition celebrates the 150th anniversary of the Society’s purchase of the 435 avian watercolors that John James Audubon’s created for his seminal volume, “Birds of America.”

While “Audubon’s Aviary: Part I of the Complete Flock” offered patrons a rare glimpse into Audubon’s earlier years, “Parts Unknown (Part II of the Complete Flock),” will consider Audubon as an established artist-naturalist, a world traveler, and a well-known figure in a growing nation. The show, which focuses on Audubon’s preparatory watercolors for “Birds of America,” will present more than 132 watercolors depicting mainly water birds and waders, many of which are among Audubon’s most spectacular and largest birds. The show will be complemented by audio of bird calls and songs of each species from the Cornell Lab of Ornithology.

“Audubon’s Aviary: Parts Unknown (Part II of the Complete Flock)” will open at the New-York Historical Society on March 21, 2014 and will remain on view through May 26, 2014. The exhibition’s third installment will open in 2015.