Andy have you noticed any Pavlovian reaction in the chicks? Do they close their eyes when they eat? Do they get specially hungry during lightning storms? Do you find an abundance of droppings on your car in the mornings? Greg > -----Original Message----- > From: ADavidhazy [mailto:ANDPPH@ritvax.isc.rit.edu] > > I use such "gadgets" on a periodic basis. My main application > has been the > photography of barn swallows approaching their nest.