As Island Girl was approaching Valparaiso, Chile on the last leg of her southern migration, we lost all contact with her for approximately 5 days. Usually this is a bad sign, because temporary outages due to a depleted battery in her backpack have always in the past resolved themselves after two or three days, with at least occasional data being received even if it's not of sufficient quality to publish on a web map. By the third or fourth day we began to fear that her backpack transmitter had failed, or worse (the batteries have never before lasted more than two years or so, so eight years has already been extremely exceptional). But, amazingly, we received one more sub-standard data point early this morning, but it was good enough to indicate that Island Girl has reached her southern home range near Putu on the Pacific Coast of Chile.
Whether her transmitter and battery will regain full functionality, enabling us to track her next northbound migration in April, is an open question. For now, all is well.