I can hear that there are goldfinches in/around my garden. They often turn up around this time of year and usually I have a hanging feeder of niger seeds, which they love.
RSPB advice though is not to use hanging feeders at this time of year. If I put seeds on the ground or shed roof the fat fuck wood pigeons just come and hoover them all up.
I've planted teasels in the hope of generating seeds for the goldfinches to eat, but they are yet to grow.
How else can I try to feed them safely?