The NJMC’s Drew McQuade reports:

Just passing along a few pics from the river Wednesday.

Above is The first is a male mummichog in its spawning colors.  The second and third show the sexual dimorphism between female and male striped killifish. Birds aren’t the only animals that vary between the seasons and the sexes.

Also included is a shot of Black Skimmers at River Barge Park, taken through my binoculars with an iPhone.   I counted 12 and later 14.  (Thanks, Drew!)