A bird survey conducted in May 2006 found that there were 194 birds belonging to 32 species.
The maleo is a chicken-sized bird belonging to the megapode family.
At the mangroves, so far, 177 species of birds belonging to 15 orders and 41 families have been recorded.
Since 1948 the zoo has hosted different birds belonging to the Zosteropidae bird family.
A total of 19,139 birds belonging to 33 families and 99 species were observed at various monitoring sites along the bay area.
A 2003 census conducted at Polachira recorded over 26000 birds belonging to 37 species.
In 1978, there were 71 species of birds belonging to 28 families and 9 orders.
As per survey, 217 different species of birds belonging to 48 families are found at this place.
Western Bluebirds are also helped by other birds belonging to a different species altogether.
Usually, birds belonging to Galliformes order have 4 toes.