According to the National Wildlife Federation (NWF), birds are very much affected by global warming. However, there are three things you can do to help: buy organic shade-grown coffee, buy shade-grown chocolate and create a backyard wildlife habitat! There is a bit to learn about getting your yard certified, but here are the steps: offer food (I know many of us tend to think of feeders, but native plants are really important), water, cover, places to raise young, and sustainable gardening. Then once you have covered all these areas (and do the online certification), you can order a nice yard sign so that others learn about this program:
There are many more tips on the NWF website to help wildlife; check it out!