Nature reserve plans for Loch Lomond site
RSPB Scotland is hoping to secure the future of what it describes as one of the most important conservation sites in central Scotland.
It teamed up with other organisations to buy land at the Wards Estate on the south east shore of Loch Lomond.
The estate will now be managed to support the wildlife and environment.
RSPB Scotland has unveiled plans for a 563-acre nature reserve in the area, which is home to a variety of species - including ospreys in the summer.
It will be administered in conjunction with Scottish Natural Heritage and the Loch Lomond and The Trossachs National Park Authority.
RSPB Scotland is contributing most of the cash for the land purchase, supported by the two other organisations and a £172,000 grant from the National Heritage Memorial Fund.
An appeal for donations from RSPB members and the public has also been launched.
Anne McCall, regional director for RSPB Scotland in the south and west, said: "We're delighted that we can be part of this exciting partnership, not only saving an area rich in all types of wildlife but also making nature more accessible to the thousands of people that live in the central belt of Scotland and beyond."