Bosses at Chester Zoo have revealed the coronavirus pandemic left them with a £5m hole in their finances - and have warned 'we're still not out of the woods'.
The zoo was forced to close in March when the UK went into lockdown.
And despite placing a number of staff on furlough leave it still cost the business £1.6m per month to operate until it reopened in June, ChesterLive reports
A 'Save Our Zoo' campaign was launched that has raised over £3m to aid their cause, but chiefs have warned that the future is far from certain as they try and make ends meet with a capacity that has been halved due to social distancing restrictions.
A statement on the zoo's website read: "The 'Save Our Zoo' campaign was launched on one of the darkest days in our history. The government had just announced that UK zoos were to close 'indefinitely' and we were approaching, what has traditionally been, our busiest part of the year after already being closed for nearly three months.
"We’re a big zoo, with over 35,000 animals and it costs us nearly half a million pounds a month just to feed and manage their welfare.
"Even with the zoo closed, many of our staff on furlough leave and a strenuous effort to cut all of our costs we still had to spend £1.6 million per month to keep the zoo going.
"Like any professional organisation we hold access to cash reserves, but without any admissions income since late March and unable to access funding from the government’s zoo support fund due to the restrictive criteria for applications, by June we were fearing that an indefinite closure could mean the end of Chester Zoo.
"As soon as we launched the campaign donations came from far and wide, from one off donations through our JustGiving page, hundreds of cheques posted to us and thousands on animal adoptions being purchased. We also had thousands of people finding creative ways to fundraise on our behalf.
"When we take in to account gift aid, we received over £3 million in donations to our JustGiving page alone. A further £200,000 in other donations, £800,000 in animal adoptions and the continued support from our members meant that we were able to cover our immediate costs during our closure.
"Our loyal supporters provided a valuable lifeline and we could not have been more overwhelmed or grateful.
"Thanks to the huge media attention, public support and our work behind the scenes with politicians, the decision to reopen zoos in England came more quickly than we expected and by 15 June we were able to open our doors again.
"Despite the “Save our Zoo” campaign we are sadly not out of the woods. We’ve moved from a perilous position to one where we can continue to operate.
"But, with the restrictions on visitor numbers to around half of our capacity, putting a strain on our ability to raise money and with our costs increasing back to the normal, now that we are open, the pandemic has left us with a huge £5 million shortfall in our finances.
"We’re determined to find ways to cut our costs and make good decisions that will lead to a return to financial health but for now our plans are on hold and we are vulnerable to the real possibility that further coronavirus restrictions will impact our finances yet again.
"There is no doubt that without your ongoing support we simply can’t deliver against our mission of preventing extinction through our conservation and education work.
"We feel passionately that this mission is more crucial than ever before.
"Please, continue to support us, if you can to Save our Zoo."
The zoo, which also raised £1m from other donations and animal adoptions following their plea for help, has so far been unable to access the Government's £100m Zoo Animals Fund after being ruled ineligible.
At the beginning of September the Government admitted that none of the funds set aside had yet reached zoos or aquariums and that only four applications had been received for financial aid.
You can donate to Chester Zoo's cause here .