The owner said it was Rs 250.  
"Rs 250", the man said. "Well what does he do?  
"He knows how to use all of the functions of Microsoft Office 2000, responds the clerk.
"He can do all of your spreadsheets and type all of your letters."

The man then asked what the second parrot cost.  

The clerk replied, Rs500, but he not only knows Office 2000,

but is an expert computer programmer.  

Finally, the man inquired about the cost of the last parrot.  
The clerk replied, "Rs1,000."  
Curious as to how a bird can cost Rs1,000, the man asked what this bird's specialty was.  
The clerk replies, "Well to be honest I haven't seen him do anything.

But the other two call him "BOSS"!!   

Bye,

Kamal