The Spotted Dove on the left and the Zebra Dove on the right. These two are still common birds in Singapore. Many of the names of the birds have changed over the past 80 years.
The Crested Serpent Eagle. One of the pitfall of solely relying on museum skin sample for the drawing is that sometimes you get the gist of the bird very wrong. This is one such example, where the illustration and the real bird differ in appearance. The eagle is a rare resident in Singapore.
The Black-thighed Falconet. Extinct as a breeding resident in Singapore, but in rare occasions some visit as non-breeding visitors.
The Sunda Scop Owls. I would not imagine a scops owl scaling a bark of a tree trunk that way! The owl is a common resident in Singapore although their nocturnal habit make them hard to find.
The Long-tailed Parakeet. Our native parakeet can still be found in good numbers in the Central Catchment Nature Reserve, but is noticebly declining over the years.
Our two most common kingfishers in Singapore, the Collared Kingfisher and the White-throated Kingffisher. Gronvold does well here to illustrate them.