Nellie Tsipoura of New Jersey Audubon writes:

As part of the Harbor Herons project, We are trying to locate nighttime roosts of egrets in the Meadowlands and other locales. 

We are wondering if any folks who read this blog might know of potential roost sites or have seen large concentrations of egrets at dusk or dawn in the Meadowlands around this time of year. 

You can e-mail Nellie at nellie.tsipoura [at] njaudubon.org.  Thanks!