Tree Saplings - Possible Sources?

Hi Folks,

I'm hoping to rewild maybe 3/4 acre of garden field that is typically baled by a neighbour in Sligo. My veggie patch is separate to this area and flowers, lawn, rockery is to the front of my property however, since COVID I'm more aware of the birdies & various critters that pass through, dwell or live on the property, pheasants, otters, hares, voles, raptors etc.

I know that there are afforestation schemes focused on improved biodiversity available but as I'm not an actual farmer I don't believe that I qualify. If anyone is aware of any assistance or good sources of native tree saplings I'd appreciate being pointed in that direction. Any ideas, suggestions or information would be greatly appreciated.

Thanks all 🤙