Here are some birdsong ringtones drawn from my archives.

These are offered free of charge for non-commercial use. They can be downloaded by right-clicking on the ringtone you want and it saving to your computer. It can then be transferred to your phone using Bluetooth. I know this method works, but I haven't tried browsing the page on a phone so I don't know if they can be directly saved this way. If anyone finds out, please let me know.

Birdsong MP3 Ringtones
Ringtone	Description
Ringtone 1	Songs of blackbird and robin and woodpecker drumming, recorded on a May morning in woodland at Little Heath, Hertfordshire
Ringtone 2	Common Tern "dive bombing" in defence of its nest, recorded on a July afternoon in Ness, North Lewis, Outer Hebrides
Ringtone 3	Corncrake call and nuptual display flight of Common Snipe, recorded on a July afternoon in Ness, North Lewis, Outer Hebrides
Ringtone 4	Crows recorded on a windy May morning in Freeland village, Oxfordshire
Ringtone 5	Pheasant and nuptual call of Little Grebe, recorded on a May morning by a fenland pool at Purls Bridge, Cambridgeshire
Ringtone 6	Sedge Warbler recorded on a May morning by a reed bed, Otmoor, Oxfordshire
Ringtone 7	Song Thrush recorded on a February morning in a hedgerow, Otmoor, Oxfordshire
Ringtone 8	Tawny owls calling, recorded on a February afternoon in woodland near Combe, Oxfordshire

I'm grateful to the RSPB for help with accurate identification of some of these.