The lesson ties into the concepts of survival and extinction of multicellular organisms from the previous lessons. R: Students rethink how organisms respond to the environment as they design an experiment on one of the pond water microorganisms from the previous lesson. E: Students express their understanding on the worksheet, in class discussion, and in groups as they work to design an experiment.
Itâs too late to attract a western hummer this winter, but perhaps youâd like to try next fall. According to Weidensaul, in addition to keeping hummingbird feeders up well into autumn, many successful hummingbird hosts have late-blooming fall plants.
You might as well enjoy their visits on their way. I always keep my feeders up for a few weeks after I stop seeing hummingbirds in the fall. I continue to change the syrup every couple of jays, to keep the feeder clean and free from mold and fermentation. Sometimes a late hummingbird straggles by long after all the others have gone. This might be a young bird that hatched late in the season and that wasn't ready to migrate when the others left.