Since my last post, there has been a distinct pick-up in fall migration – both in quality and quantity. The montane invasion has picked up in species diversity with more Pinyon Jays, Mountain Chickadees and some Evening Grosbeaks and Cassin’s Finches. I have only managed to hear a couple more flocks of Pinyon Jays and a single grosbeak but will be making more efforts for both those species over the coming weeks. Following a couple of reports of the commoner vagrant warblers, I started to check out some of the local warbler hotspots. I followed up finding a Northern Parula at Evergreen Open Space, which is quite near my home, with an American Redstart in one of the tipu-covered parking lots in east Goleta. The next morning, I hit up Winchester One park followed by the Hollister Tech Park. Winchester One was quite birdy and I had my first Tennessee and Nashville warblers of the season. I followed this up with another Tennessee at the Tech Park and a Lucy’s Warbler, along...
Whenever there is an El Nino, there is a lot of anticipation of rare pelagic species owing to the changes in water temperatures and potential displacement of species far from their normal abodes. In practice, there are a number of species – Least and Black Storm-petrels, Craveri’s Murrelets and Elegant Terns, for example – that do predictably move further north, but we are still waiting for Wedge-tailed Shearwaters to show up more commonly even though they are quite regular in numbers around the southern tip of Baja California. One group of birds that has become much commoner over the last decade is boobies. I was hopeful that the “Super El Nino” would bring in an influx of Masked, Nazca and Red-footed Boobies into Southern California mirroring the effect of the “Blob” a few years ago. Although sea surface temperatures were much warmer than normal in the spring, after that they failed to advance much through the early part of the summer and it was only in August that they sta...