It's that time of year again when BBC's Autumnwatch is back on our television screens.

The 2021 series - which started on Monday, October 26 - takes viewers to some of the UK's most beautiful locations.

From Wild Ken Hill in Norfolk to scenic shots of Eagles, red deer and otters on the Isle of Mull, the annual show tracks changes in nature throughout Autumn.

But there are some changes to this year's show with one familiar face not making his usual Autumnwatch appearance.

Who are the BBC Autumnwatch presenters

Megan McCubbin

The Northern Echo: Pictured, Megan McCubbin. Photo by BBC/Jo Charlesworth.Pictured, Megan McCubbin. Photo by BBC/Jo Charlesworth.

Megan McCubbin is an English zoologist, conservationist and photographer who joined the 'Watches' series in 2020.

She was initially a co-presenter with her step-dad Chris Packham from their home in the New Forest.

She told CountryLiving magazine that Chris could often be found rehabilitating foxes and birds in the family's bathroom during her childhood.

Megan presented Springwatch, Autumnwatch and Winterwatch on BBC Two in 2020 and 2021.

Megan - who grew up surrounded by nature and farm animals - has a degree in Zoology from the University of Liverpool.

She recently appeared in Chris and Meg's Wild Summer for the BBC.

Michaela Strachan

The Northern Echo: Pictured, Michaela Strachan. Photo by BBC/Pete DaddsPictured, Michaela Strachan. Photo by BBC/Pete Dadds

Michaela Strachan started her career as a presenter on Saturday morning television during the 1980s – from Good Morning Britain to Wide Awake Club.

She went on to present Boogie Box on the music channel Music Box and children’s nature show The Really Wild Show on BBC One.

After making her debut on Countryfile in 2002, the presenter has become synonymous with the BBC’s adventures into nature and wildlife.

She has been a staple on the show ever since joining Autumnwatch in 2011 – replacing former presenter Kate Humble.

Gillian Burke

The Northern Echo: Pictured, Gillian Burke. Photo by BBC/Pete Dadds.Pictured, Gillian Burke. Photo by BBC/Pete Dadds.

Gillian Burke has been a regular presenter on the show since joining Springwatch in 2017.

She previously worked as a researcher for the BBC’s Natural History Unit as well as a producer and director on several series for Animal Planet and the Discovery Channel.

She studied biology at Bristol University.

Chris Packham

Chris Packham CBE is an English naturalist, nature photographer, television presenter and author.

The Northern Echo: Pictured, Chris Packham. Photo by BBC/Pete Dadds.Pictured, Chris Packham. Photo by BBC/Pete Dadds.

He made his name well known on British TV after spending almost a decade presenting The Really Wild Show.

He is a keen activist for all things concerning wildlife protection and finding solutions to climate change.

Where is Iolo Williams?

The Welsh nature observer and TV presenter has left many regular viewers asking why he has not appeared on the 2021 series' first episode.

Iolo Williams has been a regular and much loved presenter on the 'Watch' series since 2019.

Sadly he won't be appearing live on Autumnwatch this year after filming dates changed.

The Northern Echo: Pictured, Iolo Williams. Photo by BBC/Jo Charlesworth.Pictured, Iolo Williams. Photo by BBC/Jo Charlesworth.

The good news is that he will be making a comeback for Winterwatch.

He told his followers: "Unfortunately, I won’t be live on Autumnwatch this year.

"The dates had to be changed to accommodate live coverage of the FA Cup and the new dates clashed with a week’s guiding on Mull.

"I’ll miss the team but I’ll be back for Winterwatch. Good luck team!"