Did the patch again this morning, with pretty much the same selection of birds as yesterday - one Openbill and two sightings of juvenile Black-crowned Night Herons (the same bird in different locations, or two different individuals?).
Whilst watching the Openbill it crossed my mind that perhaps the reason they have taken up residence in the park is a result of the availability of food - my hypothesis being that the floods that affected Bangkok last autumn enabled snails of the genus Pila to colonise the park. Openbills primarily feed on Pila snails and as the snail has been found to expand its known range down through peninsular Thailand the storks have followed. Perhaps the same is true in Bangkok's concrete jungle?
Whilst watching the Openbill it crossed my mind that perhaps the reason they have taken up residence in the park is a result of the availability of food - my hypothesis being that the floods that affected Bangkok last autumn enabled snails of the genus Pila to colonise the park. Openbills primarily feed on Pila snails and as the snail has been found to expand its known range down through peninsular Thailand the storks have followed. Perhaps the same is true in Bangkok's concrete jungle?
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| Openbill |
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