90 Geese Killed at Lake Sammamish State Park—What's the Humane Solution?

The recent killing of 90 Canada geese at Lake Sammamish State Park in Issaquah has sparked concern among a group of neighbors and wildlife advocates.

According to various media reports, the park's goose population surged to about 300 this spring, prompting health concerns over the birds' feces, which can contain bacteria such as E. coli and salmonella. State officials tried setting up screens to keep the geese off the beach and put up cardboard cutouts to scare them away, but neither idea was effective, KING 5 reports. 
The Sammamish Review reports state officials also tried stepping up educational efforts that encourage park visitors not to feed the geese, but that, too, was unsuccessful.

Eventually, the state asked the U.S. Department of Agriculture and U.S. Fish and Wildlife Service to kill the birds, which are federally protected under the Migratory Bird Treaty Act of 1918. About 90 geese were rounded up by federal agents and gassed with carbon dioxide.
A Seattle-based nonprofit called Action for Animals has started an online petition demanding an end to geese killing at Washington state parks.

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Do you think geese are a problem at Lake Sammamish State Park? If so, what's the best or most humane solution? Tell us in the comments section.