Albuquerque's RGNC attracts an impressive number of visitors; 130,000 per year. A team of 170 volunteers commit to at least 24 hours of training before running a stack of activities, walks and talks. Every year 12,000 children attend a class at the center. It's not just locals taking advantage of a natural area so close to the city. Herzenberg tells me that visitors from “all over” come to see the waterbirds, “We're know internationally as a destination for birdwatchers... [who come for] specific birds you might only see in this area.”
In spite of it's high public value, I'm surprised that the cottonwood forest, or bosque, at RGNC still exists. Levees and irrigation ditches have dramatically reduced flow throughout the Rio Grande. The last flood was in 1941. Without floods, cottonwoods can't germinate and grow. Today, the aging stands of trees are slowly dying off. Reforestation is hampered by low water levels. Consequently, the bosque and wetland areas at RGNC contain some of the few remnants of the endemic ecosystems.