Derek Keats




Olive-tree warbler
Last weekend (March 17-19) was spent providing food for mosquitoes and learning warblers with Etienne Marais and Sheleph Burger. Every year many millions of warblers make the journey from the northern hemisphere all the way to Africa, many of them overwintering (the northern winter) in South Africa. Etienne put on […]

Warbler weekend at Zaagkuildrift




People familiar with me know that I  believe in sharing digital resources freely whenever this is possible. I do a lot of diagrams and presentations, and in the process of doing so I often create new elements for those diagrams. In this section of the blog, I make those elements […]

Free (public domain) LibreOffice Draw, LibreOffice Impress and PowerPoint pillar ...


People familiar with me know that I  believe in sharing digital resources freely whenever this is possible. I do a lot of diagrams and presentations, and in the process of doing so, I often create new elements for those diagrams. In this section of the blog, I make those elements […]

Free (public domain) LibreOffice Draw, LibreOffice Impress and PowerPoint hexagon ...




Wrymouth
Ghost fish seemed an appropriate name the first time I saw one, For a fleeting second, in the light of my diving lamp; a whitish spotted head protruding from the mud disappeared as it swallowed up by the sea floor itself. Closer inspection revealed a 10 cm diameter hole in […]

The wrymouth a ghost of a fish