Slang definitions & phrases for joy-stick Expand. noun. 1  The control lever of an airplane (1910+) 2  The steering wheel of a car, esp a hot rod (1950s+ Hot rodders) 3  The control lever for a computer or video game (1967+)  An opium pipe (1940s+ Narcotics)
Like that Hamsa separates the good things from the bad things, Water birds separate good water from the bad water. It has got a sieve like structure (lamellae) in its mouth which separates water from mud. Probably this is what lead to the belief that Swans can separate milk from water and drink only milk.
Additionally, the thing that you think is the simplest to do for swans had to be the most vital - the part when you have to arrange their feeding swans' routine. However, when swans finally inhibited the feeding swans' routine in their system, it would not be a hard thing to do anymore. While feeding swans, you also need to carefully observe the changes that occur in their behaviors. Such behaviors may also mean that they have just mated with their fellow swan.