Staff noticed that there was a six foot split in the base of the pine tree and acted swiftly to bring it to ground.
Southport Botanic Gardens greenhouse manager Martin Sutcliffe said: "We noticed in the morning that it was in a dangerous condition over the aviary. It was very dangerous and had a ten foot lean, going one way. One little bit of wind and it would have come down.
"We had to use ropes to guide it and it took about an hour to get down. All the wood will get chopped up now."
The tree was pulled down on Thursday (17 September).
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