Is it just me, or are there a lot more black headed cuckoo shrikes semaphoring their wings in the metro suburbs here in Perth, than there used to be, say 10-20 years ago? I remember it used to be quite unusual to see them.
I used to live in Tuart Hill, and I never saw a butcherbird there, when we moved here, closer to the coast in 1984 I never saw them but now they aren't infrequent visitors. When I was carting mulch from the front to the back last year, there was a fearless butcherbird that waited impatiently for me to dump the load, so it could go through it, almost at my feet!
I wonder if it's anything to do with the increased use of mulch and the insects that live in it. Could help explain the Return of the Willy Wagtail too.