For those of us lucky enough to travel internationally to see birds it quickly becomes apparent that in some countries birds are abundant while in others birders have to work harder to see a wide range of species. This was brought home to me most recently spending a morning at Sri Nakorn Kuean Khan Park within the Bangkok greater area, Thailand, seeing almost sixty species of birds within a few hours on a recent morning; it reminded me of how lucky I am to live in a country where birds are abundant. This came just a few days after returning from leading a birding tour in Vietnam, where we saw a lot of extremely high quality birds but where they came rather more slowly than is typical in Thailand.
Parks in and around Bangkok can always produce a high total of species, so long as birders are out early, before it gets too hot, but at this time of the year the number of species, and the quality of those species, is increased by passage migrants. Stormy weather is usually quite good for grounding migrant species and my morning in the park coincided with this type of weather which brought me some interesting passage migrant species, albeit in small numbers. With birds such as Black Bittern, Yellow-rumped Flycatcher and Crow-billed Drongo it was an interesting morning of birding.