February 16-19 is the Great Backyard Bird Count. Here is a link to the gbbc.birdcount.org website.
Seed Eaters
Some birds will eat seed readily from a perch.  Others are deeply ingrained to feed on the ground.  Some of those can be enticed to eat from a platform feeder or hopper feeder.  Goldfinches prefer sunflower with the shell removed (or sunflower chips) and Nyjer.

Nectar Eaters
Hummingbirds and Orioles drink nectar.  Hummingbirds are attracted to red, thus hummingbird feeders are red.  Orioles will drink nectar as well as eating oranges and grape jelly.  Orioles have been known to drink from hummingbird feeders.  Sometimes they will open the ports of hummingbird feeders so they can get their larger beaks into the ports.
Order over $75.00 and take 10% off your order by choosing the "over75" coupon code in checkout.