Fox chews through fence before killing 25 flamingos at zoo

A fox chewed a hole in a supposedly predator-proof metal fence before killing 25 flamingos and hurting three others at a Washington zoo.A fox looks out from a cage after being captured on the grounds of the US Capitol in April 2022 (US Capitol Police/AP)

Keepers at the National Zoo made the macabre discovery when they entered the enclosure, which housed 74 of the wading birds, earlier this week. A northern pintail duck was also killed by the wild fox, believed to have come from the neighbouring Rock Creek Park.

It is the latest in a string of fox-related incidents in the nation’s capital. Last month, a rapid red fox attacked a politician, who fought it off with an umbrella. And Capitol Police have received multiple reports of “aggressive fox encounters on or near the grounds of the US Capitol”, including at the nearby US Botanic Garden.

The zoo attack is the worst such incident there for 20 years. In 2002 and 2003, a string of fox raids led to the deaths of more than a dozen ducks, a peacock and an elderly bald eagle. Zoo officials instituted new security measures in response to those attacks and those barriers have largely held firm – until now.

The attraction’s bird house is closed to the public for long-term renovations and the flock mainly lives in a 9,750-square-foot yard with a barn and a heated pool. The area was last inspected on Sunday at around 2.30pm, bosses said.

When staff returned early on Monday morning, they found more than two dozen dead birds and a “new softball-sized hole in the heavy-duty metal mesh that surrounds the outdoor yard”, according to a statement.

Zoo workers also briefly spotted the fox which escaped, in the outdoor area. To a fox, a flamingo is “like a chicken with longer legs and a different colour”, Dan Rauch, the city’s wildlife biologist, told The Washington Post. The ones at the zoo have their wings clipped and cannot fly.

The birds, formally known as American or Caribbean flamingos, are instantly recognizable from their long stilted legs and distinctive pink hue. The remaining flamingos have been moved to an indoor enclosure and the injured birds are being treated by the zoo’s veterinary staff.

The mesh fencing is specifically designed to prevent being chewed through by predators and “dig barriers” are also there to block any attempt to burrow under the fence. The fencing was last replaced in 2017 and had passed all previous safety inspections.

Now the zoo is boosting security again, reinforcing the mesh barriers, setting live traps around the outdoor yard and installing movement-triggered cameras to photograph any nocturnal activity.

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