arf@chinet.chi.il.us (Jack Schmidling) (07/31/89)
aliens/e5 ALIENS IN REC.BIRDS First a few words about the netequitte question brought up. Considering the volume of birding postings I have seen since I started reading this newsgroup, the idea of even bring up the subject seems a little outrageous. I have no problem killing subjects I am not interested in as long as they are generally related to the overall topic, birds in this case. However, the indoor "birders" need to recognize that it is a courtesy extended by the birders defined in the charter and in the event of a substantial increase in voulme, the "little old ladies in the tennis shoes" have priority. ......................... ALIENS AT THE FEEDER Part I Some of you may remember the cartoon published in Audubom some years ago that outraged so many bird lovers. It was the "final solution" for sparrows. It was a bird feeder that somehow trapped sparrows and dropped them down a shute where a hungry cat was waiting. Were it not for the fact that I loathe cats even more than sparrows, I would have probably built one. So I came up with a method that is not only much more humane but it is great fun and works on squirrels too. I have come to the conclusion over many years of feeding and studying birds, in an urban environment, that indiscriminate bird feeding is counter-productive. The most obvious problem is that you enhance the already greater survival rate of the more aggressive alien species. As an ecosystem can only accommodate a given number of birds, the alien birds displace the native species and diversity suffers. The not-so-obvious problem is that having a hoard of screaming sparrows, house finches and pigeons around all the time, seems to discourage the native birds from even attempting to feed. The reason it is "not-so-obvious" is that you have to stop feeding totally (difficult for bird lovers to do) for awhile to discover that there are more native birds around than when you feed. Selective feeders like hummingbird and thistle seed feeders are a limited step in the right direction but making food available for cardinals, blue jays and other desired species has always been a problem here. They are only occasional visitors and as luck usually has it, the feeder was cleaned out by the sparrows or squirrels and they go away with ill feelings toward the habitat. THE NOT SO FINAL SOLUTION To deal with the sparrows and squirrels, I ran a wire out to the large, centrally located tray feeder and put a very loud buzzer at the feeder end of it and a switch and battery in the porch viewing area. When a sparrow shows up ... BUZZ .. gone, instantly. This, system requires an observer/operator of course but when you get right down to it, most people feed birds so that we can watch them anyway. It solves the immediate problem of never again having to look at a sparrow in the feeder but it also provides great opportunities to experiment with bird behavior. For example, can they be trained to give up and never come back? If you put a very small amount of food out when observing, there will never be any at other times. Can they be trained to come around on your schedule? Do all birds react the same way to the buzzer? Unfortunately, the answer to the last is a frustrating no. And would you be surprised to find out that all the squirrels in my neighborhood seem to have a hearing problem? ..........to be continued............ In part II we will tell you how we overcame the ultimate nuisance and post some of the results of the experiment. Jack Schmidling (arf)
chuq@Apple.COM (Chuq Von Rospach) (08/01/89)
>I have come to the conclusion over many years of feeding and >studying birds, in an urban environment, that indiscriminate >bird feeding is counter-productive. Hmm. I'm not sure I agree. My backyard is filled with finches, doves (a small flock was nested in a tree behind the house when we moved in) and various other species. I don't know why this is counter-productive, since my purpose is to create an environment that I enjoy -- and the sounds of birds happens to be quite enjoyable. I get my share of other species (a family of Robins moved in a while back). >but making food >available for cardinals, blue jays and other desired species >has always been a problem here. They are only occasional >visitors and as luck usually has it, the feeder was cleaned >out by the sparrows or squirrels and they go away with ill >feelings toward the habitat. You consider all those other birds problems and bluejays aren't? Lucky you. My *biggest* problem are the Jays. They're *very* happy to walk up and take as much as they can, burying in all over the neighborhood. I don't want to hassle them their share, but they're the ones that are trying to convince everything else in the neighborhood to leave... It's gotten so bad that I *can't* leave food out for the squirrels. The bluejays run them off and go bury it. I've got peanut plants growing in most of my flower pots now. (Anyone have a good idea of how to build a feeder for squirrels that will keep the bluejays out???? Talk about turning a problem around). If I were to consider *any* species undesirable, it's the blue jay. A dozen finches on the feeder is cute, especially watching them scatter as the dove lumbeers in for a landing. A blue jay screaming at the top of his lungs at anything in a half-block radius gets tired.... >And would you be surprised to find out that all the >squirrels in my neighborhood seem to have a hearing problem? Squirrels are not stupid.... They *still* haven't gotten to my feeder (it was put up to try to keep them away) but they're getting closer. Chuq Von Rospach =|= Editor,OtherRealms =|= Member SFWA/ASFA chuq@apple.com =|= CI$: 73317,635 =|= AppleLink: CHUQ [This is myself speaking. No company can control my thoughts.]