Here are some tips for putting out hummingbird feeders in Pennsylvania:
* Choose a spot that is sheltered from the wind and rain.
* Hang the feeder about 5 feet off the ground.
* Use a feeder that is specifically designed for hummingbirds.
* Fill the feeder with a mixture of 1 part sugar to 4 parts water.
* Clean the feeder regularly to prevent the growth of mold and bacteria.