Where can i find bird repellent gel?

i want to find bird repellent gel at a retail store. do do you know where i can find it? it's the stuff that you use so the birds dont go in a certain place anymore outside.Where can i find bird repellent gel?
http://www.hotfoot.com/gel-pd.html





But it ain't cheapWhere can i find bird repellent gel?
umm well get like the owl statues and the birds get scared