Nope, not really. Very simplified, the signal is carried within a "fresnell zone", which s basically a 3d ellipse, that is relatively wide in the middle, and y

Nope, not really. Very simplified, the signal is carried within a "fresnell zone", which s basically a 3d ellipse, that is relatively wide in the middle, and you'd have to cover a lot of that area, to block the signal... definitely more than a bird can do. https://en.wikipedia.org/wiki/Fresnel_zone#Clearance_calculation https://en.wikipedia.org/wiki/Fresnel_zone#Clearance_calcula... ...unless the bird is standing infront of the transmitter/receiver.. then yes.