An Anthropogenic Double Knock and an Apparent Double Knock in Apparent Response

I recorded this today in the northern sector. The first sound is Frank Wiley’s double knock with cypress dowels on a tree. The response comes approximately nine seconds later. There was no human activity in the vicinity at the time, and the spectrogram makes it clear that the source is natural. The intra-knock interval appears […]

A Brief Update on an Old Image

I’ve been playing around with Topaz photo editing software. I’m a total neophyte and did not track all the steps I took to modify this image from 2009, discussed here, but I think that what I did eliminated some artifacts, specifically the apparent red in the crest of the bird. These pictures were taken in August, […]