Steve Arena: Black-naped Tern / นกนางนวลท้องดำ (Sterna sumatrana)
Steve Arena: Black-naped Tern (Sterna sumatrana)
Steve Arena: Black-naped Tern (Sterna sumatrana)
Steve Arena: Black-naped Tern (Sterna sumatrana)
Steve Arena: Black-naped Tern (Sterna sumatrana)