I had fairly high hopes for today, not least of which was that I could actually go birding. The first North winds in some time were considerably less than predicted and though I ended with exactly zero yearbirds, the most interactive Parasitic Jaeger we've had yet more than made up for it. Most of the jaegers that go by are a couple or several hundred yards out. Sometimes (like last post) one will cut by maybe a hundred yards away. This one did considerably better, attacking the gulls at the end of the pier. We were impressed.
The bird went into full attack mode a few times, mainly targeting the Ring-billeds though it did tail-chase a Bonaparte's well out as well. The jaeger would seem to try to match the wingbeats of the target, perhaps gaining additional aerodynamic advantage. The Ring-billed is craning its neck down to look at the jaeger. I thought it was interesting they've both turned their heads the same way as they lean into their turn.
Proof that turnabout is fair play, a young Herring Gull seemed to take umbrage at the jaeger harassing its Ring-billeds. Only it gets to harass the Ringbills.
Finally, one less display of how low the bird was,