The elusive street artist confirmed on Instagram he had placed a silhouette of a stretching cat on a damaged billboard in Cricklewood, northwest London, earlier on Saturday - the sixth in a new set of animal images revealed this week.

The creature, stretching out its body with its shoulders down and its hips and tail in the air in classic feline fashion, joins an ibex goat, elephants, monkeys, a howling wolf and pelicans, also revealed this week as Banksy pieces dotted across the city.

The contractor, who only gave his name as Marc, said they were going to pull the billboard down on Monday anyway and replace it but it has been brought forward to Saturday in case someone "rips it down and leaves it unsafe".

He told the PA news agency he would store the artwork as he had been told "to keep it in case he [Banksy] wants it."

But if it wasn't collected, he said, "it'll go in a skip".

A crowd has gathered by the artwork in Edgware Road to take pictures and videos. Police have taped off the path in front of the billboard.

Earlier this week on Monday, the goat with rocks falling down below it, just above a CCTV camera, was announced near Kew Bridge in southwest London, kicking off the new animal-themed series.

In nearby Chelsea, silhouettes of two elephants with their trunks stretched towards each other on the side of a building were confirmed as Banksy pieces the following day.

On Wednesday, the street artist revealed he had put three monkeys appearing to swing from a train bridge over Brick Lane in east London.

On Friday, there were pelicans pinching fish from a chip shop sign in Walthamstow, northeast London, a day after a wolf howling on a satellite dish was confirmed in Peckham, south London, and promptly stolen.

Three masked men removed the dish with the wolf artwork less than an hour after it was revealed.

A witness told the PA news agency that he filmed them, prompting one of the trio to throw his phone on a roof.

The man said: "It's a great shame we can't have nice things and it's a shame it couldn't have lasted more than an hour."

No arrests have been made, the Metropolitan Police said in a statement.

A spokesman for Banksy, whose identity is a secret, said he had nothing to do with the theft, and had no idea where the satellite dish was.

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Banksy was recently criticised by former home secretary James Cleverly, who said the artwork he created for Glastonbury Festival was "trivialising" small boat crossings and "vile".

The artist had said he was the person behind an inflatable boat filled with migrant dummies which had been crowdsurfed at the music festival in June, during performances by Bristol indie punk band Idles and rapper Little Simz.