There are plenty of consumer-grade devices with shielding. Cell phones, wifi/4G tablets, pretty much anything that transmits or receives wireless signals is shielded in some way, and there are a gazillion consumer-grade devices like that. A mobile phone with some internal shielding (although it is not always actually "swiss cheese"...sometimes it is just a solid metal plate):
Ah, well, misinterpretation on my part. I agree, punching a hole in the body for an antenna is nothing, and sealing it back up should be fairly easy if it was indeed done.
That's ok...it also means that I did not explain myself well enough.... Just like above when I meant to say "fully shielded" but said "shielded". OOPS!
BTW, thanks for the chickadee advice... Picked up a blind... Ordered the cd book.....
The blind should really help! Sometimes I just spend time watching bird behavior, without taking photos. It is interesting when you just sit and get deeper into bird behavior...you start learning the quirks of each species, some of the meaning behind their little "conversations", etc. It can get pretty interesting, and sometimes quite hilarious. I've noticed that one of the house finches...and orange morph variety...has quite the attitude. When he shows up, he bullies all the juncos, sparrows, finches, and chickadees away and pretty much "owns" the feed box.
Funny creatures, birds! Although, when you boil it all down...not all that different from us.
I really can't wait till spring hits, and I can try out some more interesting perches. The CD books are great, but I've only been able to apply a tiny amount of that knowledge so far.