|Red-headed Woodpecker via state.nj.us/dep/fgw/ensp/somdec.htm|
Warming weather not only brings some bird species to NJ, but brings out the more reluctant birders. Even if you're not a "birder" officially, you probably are paying more attention to seeing birds in your neighborhood.
NJ Audubon offers lots of information for anyone on either end of the birding continuum.
Check out their sightings reports at njaudubon.org/Tools.Net/Sightings/
Look for the sightings in your own area, like at the Montclair Hawk Watch in northern NJ.