The year 2011 marked the dedication of a new riverside park in Carlstadt, lots of great nature sightings, and the continued partnership with Bergen County Audubon Society — more than 40 events that included a Kearny Marsh Cleanup, a Losen Slote Creek Park clean-up, a couple of free talks by "Meadowlands" children's author Tom Yezerski and the third Annual Kevin Karlson Shorebird Day.

We thought we'd celebrate by looking back at 2011, month by month.

Here are some highlights from February:

February 3: Winter Sunset, Valley Brook Ave.

February 4: Of Heath Hens and Passenger Pigeons

 February 10: Dark-morph Rough-leg on Disposal Road

February 15: Mill Creek: Common Teal, Gray Ghost, Plus

February 17: Pheasants and More

February 23: 'New' Disposal Road Raptor