A catholic school decided to take their third grade class to visit the zoo.
Twenty two youngsters and four Sisters (nuns)gathered up the children and they all piled into the school bus for their trip to the zoo.
For most of the children this was their first opportunity to visit a zoo.
The first animals to be observed by the class were the Lions. All of the children were quite impressed by these ferocious beasts and a Sister pondered a bit and for lack of a term to use, she said "I guess we could call this the Caterey"
The next building housed the birds and the children were all excited to see the beautiful colored birds singing and flying about over their heads. The Sister proclaimed, "this is the "aviary".
As they progressed further they came upon the enclosure that housed the Penguins.
All the children hurried up to the glass and pressed their faces as close as they could get to the enclosure. The Penguins were all jumping and diving into the water and having a great time.
One of the children looked up at the Sister standing behind him and said "is this the nunnery"?