The x-ray of "Happy Feet" shows the san in his throat, all removed after his surgery.
They have given him a 50/50 chance...
The young emperor penguin rescued from a Kapiti Coast beach has survived the night, following a harrowing four-hour operation to clear sand from his airway yesterday.
Wellington Zoo spokeswoman Kate Baker said the penguin, dubbed Happy Feet, had been eating ice overnight and had "passed some sand" this morning.
He will now undergo a second procedure at 11am to remove some more sand from his stomach.
Last night Happy Feet was given only a 50 per cent chance of survival by his vets, who removed sand blocking his oesophagus. X-rays have revealed his stomach is full of it, and it remains a grave danger.
The operation was the first hurdle in the attempt to save the penguin, whose plight has captured local and international attention.