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...
Although a few bird species that require coniferous forest are resident in the highest peaks of the San Rafael Mountains in Santa Barbara County, these mountains need special access permissions and require multi-hour drives on poorly maintained dirt roads. As a result, it makes more sense to drive a slightly longer amount of time to the California Sierras or other high mountain ranges in Southern California to see these species and several others that do not breed or winter regularly in the county. In my case, you may have read here that I just had driven a lot further to see many of these species in Washington and British Columbia. However, in some years the failure of cone crops can trigger irruptive behavior in many montane bird species when they can appear in areas far from their normal range. On the morning of September 5, I visited the Hollister Tech Park, which is sometimes a productive site for migrating warblers. I found very few warblers but was surprised to turn up...