Whether goslings live or die at the Central Park Reservoir could be up to two 70-something, nature-loving men who first crossed paths there this winter.

Edward Dorson, a wildlife photographer and regular visitor to the reservoir, learned in 2021 that federal workers were destroying the eggs of Canada geese there as part of a government safety program to decrease bird collisions with airplanes. He tried to stop it.

He reached out to animal rights organizations and wrote letters to various government agencies. He got nowhere.

Then in December, he met Larry Schnapf, a tough-talking environmental lawyer, who spotted Mr. Dorson admiring the birds and introduced himself. Mr. Dorson told him about the nest destruction. Mr. Schnapf, in his 40-year legal career, had mostly focused on redeveloping contaminated properties but had picked up the occasional pro bono passion project. “I told him I take on quixotic pursuits,” Mr. Schnapf said.

Now, they are teaming up to protect the eggs of a small population of Canada geese that nest around the reservoir, a popular attraction for joggers and bird watchers. The battle will undoubtedly be uphill: They are lobbying multiple government agencies during a fraught time in aviation where bird strikes are one of many concerns, on behalf of a bird often described as a nuisance because of its honking cries and the droppings it leaves on lawns, parks and golf courses.

The men say they appreciate the importance of protecting planes. But they are seeking to exempt the Central Park Reservoir from the egg destruction program so that it can serve as a sanctuary for the nesting geese. They argue that Central Park is far enough from the area’s airports that the geese do not pose a major problem.