Watch the Queen make a joke about Trump's helicopter - which makes Sir David Attenborough giggle

• The Queen made a quip about Trump while speaking to Sir David Attenborough.
• She said the helicopter "sounds like President Trump... or President Obama."
• The clip is part of "The Queen's Green Planet" which will broadcast in the UK on ITV at 9 p.m. on April 16.

The Queen made a joke about President Trump when a helicopter interrupted her conversation with Sir David Attenborough in the Buckingham Palace garden.

The 91-year-old monarch said as a helicopter interrupts her talking:

"Why do they always go round and round when you want to talk?

"Sounds like President Trump, or President Obama."

While the Queen has invited Trump to the UK on a state visit, but the two heads of state have never met in real life. The Queen has met Obama twice.

"The Queen's Green Planet" will be broadcast in the UK on ITV at 9 p.m. on April 16.

Produced by Claudia Romeo