Monday marks the Glorious Twelfth, the start of the annual grouse shooting season.

The season runs for 16 weeks to December and sees game hunting enthusiasts visit the UK from Europe and North America.

The Glorious 12th
Shooting parties gather on the moors at the Rottal Estate in Glen Clova, near Kirriemuir, Angus (Jane Barlow/PA)

The Glorious 12th
The industry is recovering from a poor season last year (Jane Barlow/PA)

The Glorious 12th
So in Scotland, some grouse moor owners will not be shooting at all this year (Jane Barlow/PA)

The Glorious 12th
Milo the dog also accompanied members of the shooting party in Scotland (Jane Barlow/PA)

The Glorious 12th
The start of the grouse shooting season often reignites the debate over the sport’s role in protecting the countryside (Jane Barlow/PA)