I saw relatively few Purple Sandpipers (normally a highlight at Barnegat Light) or Ruddy Turnstones on my last visit there, but both were on the jetty. In winter, Ruddy Turnstones lose the ruddiness that gives them their name, but they retain the distinctive bib and moustache. Ruddy Turnstones are one of the northerly breeders among shorebirds, with their breeding range covering parts of Nunavut and Greenland, as well as the northern coasts of Alaska and Siberia. Their winter range extends along the Atlantic and Pacific coasts of North and South America.
Here is a Ruddy Turnstone with a Purple Sandpiper. It is easy to see why shorebirds winter here, with a convenient mussel buffet. Turnstones switch from eating flies and other insects to a more varied diet in winter. Crustaceans and mollusks are their main prey items, but they also will scavenge animals killed by other birds and refuse left by humans. Speaking of refuse, the gray item in the lower right of this photo appears to be a fishing weight.