Fergus Gill / 2020VISION / Collared dove (Streptopelia decaocto) perched on a snow covered branch, Perthshire, Scotland, UK, April.

Fergus Gill / 2020VISION / Male House sparrow (Passer domesticus) feeding on the ground, Perthshire, Scotland, UK, July.

Fergus Gill / 2020VISION / Whitethroat (Sylvia communis) with insect prey, perched on Rosebay willowherb (Epilobium angustifolium), Perthshire, Scotland, UK, June.

Fergus Gill / 2020VISION / A misty morning view looking down the River Tay in autumn, Kinnoull Hill Woodland Park, Perthshire, Scotland, November 2011.

Fergus Gill / 2020VISION / Mixed woodland of ash alder, oak beech in autumn colours. Kinnoull Hill Woodland Park, Perthshire, Scotland, Novermber 2011.

Fergus Gill / 2020VISION / Peregrine Falcon (Falco peregrinus) in flight over the River Tay. Kinnoull Hill Woodland Park, Perthshire, Scotland, November.

Fergus Gill / 2020VISION / Close up of colourful mixed woodland in autumn, Kinnoull Hill Woodland Park, Perthshire, Scotland November 2011.

Fergus Gill / 2020VISION / A misty morning over a mixed woodland in autumn. Kinnoull Hill Woodland Park, Perthshire, Scotland, November 2011.

Fergus Gill / 2020VISION / Tree Sparrow (Passer montanus) (right) and Yellowhammer (Emberiza citrinella) foraging on snow. Perthshire, Scotland, January. Did you know? The Tree sparrow population in UK dropped by 93% between 19...

Fergus Gill / 2020VISION / Yellowhammer (Emberiza citrinella) perched on snowy branch. Perthshire, Scotland, February. Did you know? Beethoven's pupil claimed that the famous 'fate motif' of his 5th Symphony was inspired by the...

Fergus Gill / 2020VISION / Tree Sparrow (Passer montanus), male Chaffinch (Fringilla coelebs) and a male Yellowhammer (Emberiza citrinella) on snowy branch (left to right). Perthshire, Scotland, December.

Fergus Gill / 2020VISION / Yellowhammer (Emberiza citrinella) on grass. Perthshire, Scotland, June.