Welcome to the fourth in a series of Tuesday Teasers devoted to Losen Slote Creek Park, the site of our fifth annual Super Bird Sunday Walk on Feb. 2.

Between now and then, we will offer a different Losen Slote-based Teaser presented by the Bergen County Audubon Society. To participate, just e-mail your answer to the Teaser each week to Jim Wright at jim.wright@njmeadowlands.gov by each Tuesday at midnight, with “Teaser” marked in the subject field. The person with the highest number of correct answers will win something or other.

Today’s Teasers are pictured above. What are they, and what do they have in common? (Yes, finally a bird-related Teaser-o-rama.)

Answer appears tomorrow.