Fire officials in La Pine are investigating the cause of a house fire Wednesday night.  La Pine fire officials say it broke out around 6 pm in the 53 thousand block of Big Timber Drive.  The residents made it out safely and firefighters were able to rescue a dog, two cats, several snakes, a gecko, a fish, and a chicken.  A man inside the house when the fire broke out did suffer first degree burns and smoke inhalation when fire officials say he tried to douse the blaze with a hand held extinguisher.