This is a long-tailed macaque mother with her baby, photographed last November in Thailand. It goes out to all the mothers, human and otherwise, especially my own mom, wishing you all a Happy Mother’s Day weekend.
Nikon D500 with Nikkor 200-400mm lens (at 200mm) ISO 800, f/4 at 1/1000th of a second

I spent quite a bit of time with this troop of stump-tailed macaques on the Malay Peninsula of Thailand. They were very accepting of my presence and I was able to get quite a few intimate portraits, such as this nursing mother and her baby.
Nikon D810 with Nikkor 200-400mm lens (at 200mm) ISO 1600, f/4 at 1/250th of a second

This female white-handed gibbon was striking quite a few poses high in the tree tops of Kaeng Krachan National Park in Thailand. She was actually partaking in the morning ritual of marking her territory with a series of vocalizations and calls with her mate and offspring.
Nikon D500 with Nikkor 200-400mm lens (at 200mm) ISO 1600, f/4 at 1/200th of a second

I liked the name of this butterfly that I photographed in Thailand — the Paris Peacock. I wanted to capture the brilliant green of the topside of the wings, while also displaying the underside with the colorful rings along the back edge. The Paris Peacock also has two large turquoise patches on the topside of the wings, which are impossible to see from this angle.
Nikon D500 with Nikkor 200-400mm lens (at 400mm) ISO 1600, f/4 at 1/40th of a second

I had a lot of fun photographing this troop of stump-tailed macaques on the Malay Peninsula in Thailand — especially these youngsters who were constantly at play.
Nikon D810 with Nikkor 70-200mm lens (at 200mm) ISO 1600, f/4 at 1/2000th of a second

Here’s another look at the masked palm civet that I met near my campsite in Kaeng Krachan National Park in Thailand. He was creeping around behind a hill, no doubt wondering what all those smells were coming from the camp kitchen.
Nikon D810 with Nikkor 200-400mm lens (at 400mm) ISO 400, f/18 at 1/60th of a second, two Nikon SB-900 flash units

There are quite a few species of bulbuls — 130 or so — spread across Africa, the Middle East and tropical Asia. I photographed this guy, the flavescent bulbul, in Kaeng Krachan National Park in Thailand. Flavescent means yellowish, an accurate description for this yellow and grey bird.
Nikon D500 with Nikkor 200-400mm lens (at 400mm) ISO 800, f/4 at 1/500th of a second

This is one of those creatures — like many reptiles — that gets a lot of names, creating some confusion for a guy like me who attempts to be as accurate as possible with these daily posts. I believe, although I could be wrong, that this is the lizard classified as Calotes Emma. If so, it goes by the common names of Emma Gray’s forest lizard, crested forest lizard, Emma Gray’s crested forest lizard, or spiny-headed forest lizard. The Emma Gray part of the name, is in honor of English conchologist Maria Emma Gray, who’s husband named said lizard. And if you’re wondering what a conchologist is, well, one who studies conchs, of course. But back to the lizard — this one was photographed on a hike in the Khlong Saeng Wildlife Sanctuary in Thailand.
Nikon D500 with Nikkor 200-400mm lens (at 300mm) ISO 800, f/4 at 1/80th of a second

I couldn’t find much info on the white-banded awl butterfly, but my guide got pretty excited when we found this one in Kaeng Krachan National Park in Thailand. He said that it was a very rare find, although not quite as rare as the emerald awlet that I posted back in November. I spent quite a bit of time on the ground with my macro lens before the awl finally landed close enough for some proper shots. I’m not sure what the behavior was all about, but it kept emitting that green fluid from its proboscis and then presumably sucking it back up again.
Nikon D500 with Nikkor 105 macro lens, ISO 800, f/5 at 1/160th of a second

This stump-tailed macaque seemed to have come to a sudden realization that something was wrong. Who knows with those macaques. Just another of the many macaque photos I took on the Malay Peninsula in Thailand.
Nikon D810 with Nikkor 70-200mm lens (at 200mm) ISO 1600, f/4 at 1/500th of a second