Little Cormorant

It is extremely common throughout Seberang Perai, with a large nesting colony of up to hundreds at Teluk Air Tawar – Kuala Muda coastal IBA,
with count of up to one thousand. It is most likely a natural colonization from the north, first recorded at Seberag Perai about 10 years ago.

https://datazone.birdlife.org/species/factsheet/little-cormorant-microcarbo-niger

At Teluk Air Tawar – Kuala Muda: both a resident and a migrant, seen at the coastal edge of the mangroves. See When to see shorebirds at Teluk Air Tawar – Kuala Muda.