There was time when flamingos bred in the coastal flats of Gujarat and wintered around Mumbai. But like many such, some are now residents of the big city. The mud flats and tidal creeks of Mumbai are now their home. Their numbers increase with the usual winter influx. So this is a good time to take a boat through the creeks of Mumbai.
Most of these birds are lesser flamingos. The few greater flamingos can be distinguished by the shape of their necks. The necks of lesser flamingos are like an inverted letter J, whereas the long necks of greater flamingos are in the shape of an S. Sizes and colour differences between these two species are confusing. The only other consistent difference I’ve noticed is that the lower bill of the greater flamingo is always yellow.
The rest of the colour of the flamingo comes from the crustaceans that it eats. So it is interesting to ask why the flamingos of Mumbai are less colourful than their country cousins. Could it be that these creeks are now so polluted that the crustaceans are dying out?