24/08/18
Although I can easily understand how there may be a possible split second interruption to viewing should the dove fly in front of the dish and then moving back and forth to it's nest, a sitting dove at the back of the dish, as seen in my photo should have no detrimental effect on TV/SKY reception.
As in this example in Wychbold recently the doves family home was NOT the cause of the "No TV signal being received" displayed on my customers TV
Click on image to enlarge..