On to the second Aviary--the Maryland Aviary. This is a rather unassuming place that I have no doubt others glance at and then bypass. And that's to their loss. An ample sanctuary for a range of birds from ducks and herons to a crane and a vulture, the opportunity to experience these birds up close and personal is amazing. Here I share with you from experiences some of the ducks: Northern Pintail. Woodduck and Marbled Teals. Along with some very beautiful and sleepy Black-crowned Night Herons, A pair of Little Blue Herons industriously constructing their nest and a love Green Heron.