Please help I'm getting no birds at my feeding station

Hi I'd really appreciate some help I started feeding the birds in the spring but I didn't have many visit so moved my feeding station to the bottom of the garden and I started to get a few finch every day and a Robin. I then went away in the summer for 2 weeks came back to feeders were empty so refilled them but only the Robin came back. I also noticed that the squirrels were helping themselves so got them their own feeding station. I then moved the feeding station away from the squirrels. The feeding station has now been in its new place for about 6 weeks but only the Robin has returned. Would really appreciate any help thank you