Few subjects provoke the ire in a roomful of birders more rapidly than whether or not to count introduced species. The ins and outs of what is “countable”, what is “established”, and what is still an exotic alien has reddened faces and clenched fists among birders for decades. After that comes the discussion of which state bird records committee is loosest or tightest in their approach to exotics. By then, former friends begin to disperse faster than the young of the year.
But in the end, that is not really what matters here. When it comes to counting exotics, I find myself more and more adopting an eBird stance. That is: count them all, do it as accurately as possible, and submit your data. In the end, the importance of this goes far beyond a mere life list. What matters most is the impact that these growing populations of exotics have upon our native species and the environment in general. Make no mistake about it, that impact is huge.
The only way we will ever get any kind of handle upon it is to count each and every exotic species as accurately as possible and submit the data on eBird. Note that I treat eBird as an assumption here. Please do the following if you do not currently use eBird. Stop reading, open an account (http://ebird.org/) and download the app to your phone. Learn how to use it. Seriously. Then come back and finish reading. Continue reading