Here's my source:
http://www.blueletterbible.org/tmp_dir/words/5/1138060759-1624.html
Hebrew Scholars at ASA also seem to agree with this definition of the word.
Hugh Ross is really grasping at straws if he claims it just refers to insects.
You may want to believe him, if you like, and it's not important for your salvation. However, don't you think it's a bit strange that just about all other Hebrew scholars have a contrary opinion? If the word really means just insects, don't you think it's a bit strange that not a single English version of the Bible translates it as such?
Let's see, you say it's not commonly used for birds, but in Genesis 1:20 it has to be because that fits your view? Any scholars who think that way aren't being very scholarly.
A lot of "scholars" believe in UFOs and bigfoot. Seems being a scholar doesn't prove a whole lot if your scholarship is poor.