Natural history of Trinidad and Tobago hummingbirds to the primitive cave-dwelling oilbird (that uses sonar to fly in the dark) to the spectacularly beautiful scarlet ibis. The islands are within a few miles of Venezuela, and the species are therefore typical of tropical South America. However, the variety (although quite exceptional for such a small geographic area) is somewhat impoverished compared to the mainland, as would be expected with small islands. The resident breeding birds are augmented in the northern winter by migrants from North America. Tobago has only about half the number of bird species of Trinidad, but about 22 birds have been reported only
South Coast Line usable for trains. So the South Coast Line trains have started to depart from platform 4 or platform 11 instead, though, peak hour services can commence from and on the Eastern Suburbs railway line, and stop at Central at Platform 25. South Coast Line trains pass through most of the stations on the suburban section of the South Coast railway line, and usually only stop at (to and from Bondi Junction only), , , and , though services to and from and also make additional stops at , , and . The most common Central to services, operated by NSW