These 2 hitched a ride or a well earned rest,any idea's?

On a cruise ship in the Caribbean in Oct 2007....these 2 little birds were either having a long earned rest..or a free ride to the next port...anyone  got any idea's as to what they were? 

 

THANKYOU FOR READING

SUE and LUCKY..just call me    Mrs Early Bird.....x

Our house operate's  soley for our animals and birds......Love me love my animals........