Today the website set up to track the released emperor penguin "Happy Feet" at www.ourfarsouth.org added the following update:
Update 12 Sep 2011 - The transmitter has appeared to stop transmitting. This could be due to a number of reasons, but it may not be due to interference from the solar flares as previously speculated. There are a number of reasons this may have happened - transmitter falling off, transmitter damage, technical failure etc. Our view is the most likely scenario is the transmitter has fallen off. After all it was only glued on and would have had to survive extreme conditions. It will be at least a couple of days before we know for sure that the transmitter is no longer working. Hopefully we'll be pleasantly surprised. But if we don't get further readings then we'll have to hope for the best and be thankful that we've had such a wonderful cause to raise peoples' awareness of the Far South.