Kalba, straddling the border with Oman, supports the only mangroves on
the UAE's east coast. These are home to an endemic subspecies, kalbaensis,
of white-collared kingfisher (Todirhamphus chloris), which breeds only
than fifty pairs are present and it is thus one of the rarest subspecies
of bird in the world. The kingfisher feeds almost exclusively on crabs,
something local children find it hard to resist collecting too.
Khor Kalba is, not surprisingly, scheduled to be designated a nature reserve
by the authorities
in Sharjah emirate, to which it belongs.