They are very territorial especially coming up to the breeding season, we had a pair nest in the store last year. Much worse are the pied fantails,they will spend all day sat on the bike trying to attack the mirror. I have even seen them chasing a dog and the dog was not amused and was running with tail between legs while the fantail was trying to pull hair off of it's back
We don't have glass windows but the lot near us where our dogs used to play, don't know why but the sunbird's like to chase the dogs on their tail. It's funny to watch them, it bug the hell out on the dogs.... :D
:D Well, Thank You for that, It has answered a question, about my little Dogs dislike, of some birds. now I can guess which and Why?
nice pics, thanx...I am also grateful for the beautiful nature surrounding us here - by the way, if you are a Windows-user, you can downsize your pictures with the regular Windows photo program onboard