Bird Banding in Cape York, Australia

Although many people elsewhere in the world have been in some form of lock-down or another due to Covid, I have been busy in the field most of the past year as Canberra has been relatively free of the nasty bug - so far. In consequence, I am only now catching up on cataloging last year's photographs. This set is from a bird-banding trip to Kutini-Payamu (Iron Range) National Park in Cape York, north Queensland, that was organised by Jon Coleman, back in late November - early December. This was all done as part of a long-term study by various people over the years of the birds in rainforest in the area, so it was good to be able to fulfill this year's effort and maintain the continuity of the study. The first survey in this study was done in 1990, and a total of 5988 birds have been banded, including 712 birds in 2020. And 54 birds were re-trapped in 2020 from earlier capture in previous years. 618 birds have been re-trapped in the whole study. I do not aim to detail all the species banded/ringed in this post, merely portray a selection of species that we caught, some of which are only found in that part of Australia.

Frill-necked Monarch Arses lorealis, a flycatcher which in Australia is restricted to the wet forests in Cape York. Like many of the species caught in this study, this species' range is between far north-east Australia and New Guinea.

This is an adult male, females have pale lores and do not have a black chin.

White-faced Robin Tegellasia leucops. One of the more commonly seen rainforest birds in the study area. Mostly because they hunt in typical robin style of perching on low branches then pouncing on prey on the ground. It might be commonly seen, but only locally, as in Australia it is restricted to the Cape York peninsula.

White-faced Robin. Yes it has white face.

White-streaked Honeyeater Trichodere cockerelli. A true Cape York bird as it endemic to the area. We watched these birds feeding on nectar from flowers in the high canopy of the forest.

White-streaked Honeyeater. As with so many birds, the details that can be discerned when in the hand give a different impression of the bird seen in the canopy. Here the elaborate spiky white feathers on the throat show how the streaked effect is formed. And those subtle yellow tufts are exquisite. 

Tawny-breasted Honeyeater Xanthotis flaviventer. This is another trans Cape York - New Guinea species, although it isn't restricted to rainforest as it can be found in other wooded habitats. The wavy white line below the eye is a diagnostic feature on this otherwise generally brown coloured bird.

Grey Whistler Pachycephala simplex. This is another species whose range extends over northern Australia and New Guinea. Small green-grey birds are easily overlooked in a forest.

Magnificent Riflebird Ptiloris magnificus, adult female. There are three species of Riflebird (members of the BIrds of Paradise family) in Australia, all separate in their ranges and this is the most northern one, which ranges between Cape York and New Guinea.

Chestnut-breasted Cuckoo Cacomantis castaneiventris. A cuckoo of dense rainforest, hence in Australia mostly confined to the Cape York peninsula, close to its main range throughout New Guinea.

Little Bronze-Cuckoo Chalcites minutillus. This of the minutillus sub-species as recognised by the wide black and white markings on the outer tail feathers. This sub-species ranges across northern Australia, the archipelago of Indonesia and New Guinea, and south east Asia.

Little Bronze-Cuckoo. The tail pattern is diagnostic between the various species of Bronze-Cuckoos. The metallic lustre on the bird's back and coverts show why they are named Bronze-Cuckoos. 

Lovely Fairy-wren Malurus amabilis. Adult male on the left, female on the right. These birds inhabit the edges of the forest, sticking to the scrub along the edges of clearings. They are known hosts of the Chestnut-breasted Cuckoo, above.

Yellow-breasted Boatbill Machaerirhynchus flaviventer, adult male. 

Yellow-breasted Boatbill, adult female. 

Yellow-breasted Boatbill - this shows why they are named boatbill. This is a flycatcher and I have watched them catch insects in the air, but I do not know the advantage of the unusual bill shape.

Noisy Pitta Pitta versicolor. This is a common species of rainforest or wet forest gullies all along the eastern fringe of Australia, but that does not detract anything from the privilege to see them up close. They are predominantly green, yellow, brown and black so easily missed when foraging on the forest floor. Although the lustrous blue on their wings and rump shine must shine when they flash them.

Shining Flycatcher Myiagra alecto, adult female. 

Shining Flycatcher, adult male. 

Shining Flycatcher, adult male. The blue plumage shines in the dappled light of the forest, especially that on the crown and throat.

Shining Flycatcher, adult male. The bright orange of the inside of the bird's bill is so vibrant in contrast to the shining blue of its plumage that it must be an important component of their display.

I find the colours and forms of all birds fascinating, when considering their purpose, and in the dark understorey of rainforest, little details help the birds shine and be seen by their con-specifics. 

I always see something new when I visit rainforests, and on this trip I saw rather a lot. My thanks to Jon for organising the trip.

Best Photograph 2020

Lumholtz's Tree Kangaroo Dendrolagus lumholtzi, Atherton Tableland.

We all know 2020 has been a terrible year and I have noticed that I have posted much fewer articles this year than most. This is a result of me not having traveled so much this year, none internationally. But in November the state borders opened in Australia and I was able to go on a field trip to Cape York, stopping for a few days on the Atherton Tableland in north Queensland. And that was where I spotted this lovely animal high up in the rainforest branches.

These are not the sharpest of shots, but not bad for a hand held long lens in dull light. It is the back-lighting on the fur and leaves that I like, and the pose. The kangaroo could not have held a better pose for me. And I like the detail of the mosses and ferns on the branches, a true wild shot of an animal in its natural habitat.

Although, as it sat there looking down at me, completely at ease in the branches, I was reminded of a similar scene from the movie Predator. I only saw this one kangaroo, I must have missed more. Real life is better than fiction.

Tawny Frogmouths are busy

Many of the tawny frogmouth chicks I have been studying this year have fledged in the past two weeks, like these two above, flanked by their parents. The family were sitting in a tree about 30 m from their nest tree. All were sitting quietly in the partial shade. Mum adopted a defensive hiding pose, adopting a posture to resemble a broken branch. Dad sat quietly, he had seen me often before and probably recognised me as no threat. The chicks were curious.

The chicks, like so many frogmouth fledglings, were so curious of the observer that they never adopted a defensive pose. They stared down at me as if determining what I was, and whether I was a threat to them. They were probably trusting in their parents for guidance. But they simply sat quiet and didn't give any soft alarm calls. Did the chicks feel safe because their dad wasn't alrmed?

Dad maybe looked calm, but I am sure he was ready to react were I to make any wrong move towards them.

There are numerous frogmouth pairs that did not seem to breed earlier, in september, as usual. But I have seen several new nests and birds on eggs in the past week, at the same time as most are fledging. This might be because there was limited food over winter and not all birds were in condition to breed in spring. Now though, with most pairs rearing two chicks, and some pairs rearing three, and it has been a wet spring, it looks like there is abundant food. I found this frog below one nest, and if this is an example of the prey available, that is a substantial meal for a frogmouth chick.

And I found this centipede below another nest. The kinks in the animal's body indicate where a frogmouth had grabbed it. I wonder what they taste like?

Blind Snake killed by Tawny Frogmouth

I found this dead Blackish Blind Snake Anilios nigriscens yesterday below a Tawny Frogmouth nest. It was lying directly below the birds' nest where there were two well-grown chicks, days form fledging. The snake was in amongst the scattering of droppings from the chicks, and there were two distinct pinches in the body, indicating where a frogmouth had gripped the snake when thrashing it against a branch to kill it prior to delivering it to the chicks. There were broken scales on the head indicating this, see image below. 

The nest was on the branch of a Yellow Box Eucalyptus melliodora. The adult male bird on the nest can be seen here against the sky. Less easily seen is the female two branches below.

Blind snakes are only nearly-blind. They hunt by following invertebrates such as ants and termites in burrows and have evolved scales over their tiny eyes, seen here as faint black spots 3-4 scales back from the snout. They seldom venture above ground except after rain, and 27 mm of rain fell in Canberra in the 48 hours previous to this find. Its burrow had probably been flooded. On one of these wet evenings, I watched another frogmouth hunting small invertebrates on the edge of a road. It sat on a sign post or branch and watched for prey to move. There were obviously plenty, as the bird only sat on a perch for a less than a minute at a time before pouncing down and carrying off some small animal to its young back at their nest. This snake, at 44 mm long, would have been an easy find and capture. 

Blind Snakes are almost defenseless against such attacks. They have very small mouths and cannot bite like an elapid snake. They can twist and turn, and release foul-smelling odour, but neither of these strategies would protect it against a frogmouth. I do wonder though, why was it lying below the nest. This is the largest snake recorded to have been killed by a Tawny  Frogmouth, twice the size of the previous record. Was it too large for a chick to swallow. Or had it been dropped between adult and chick by accident. I believe the latter scenario, as such a large snake must have been difficult for the birds to maneuver between mouths, especially inexperienced young mouths. 

Canberra Spider Orchids

Arachnorchis actensis

The orchids in and around Canberra are flowering really well this year after high rainfall in autumn, winter and spring. In the past week I have seen several species in flower, the more common ones in thousands on Black Mountain. Even some of the local specialties have been out in high numbers. And I have seen several groups of the local endemic Canberra Spider Orchid, with a total of over thirty flower spikes. By far the most I have ever seen.

A little group of Wax-lipped Orchids Glossodia major.

The detail of a Nodding Greenhood Pterostylis nutans.

At only about 10 cm tall and with two slim leaves, this Canberra Spider Orchid is easily overlooked in the shadowed leaf litter.

A burst of sunshine helps define the flower.

And the intricate detail of the flower head. A very rare flower. A treasure.

 First Shingleback of the Spring

The weather picked up a bit last week. It was bit warmer, there was blossom on all the fruit trees and many birds are well into breeding mode. And there hasn't been a frost for a while. All enough to encourage the reptiles to come out from their snug winter quarters under logs, rocks and sheds. Enough for this shingleback to take a wander through the woodlands.

I always stop to chat to these lovely lizards when I meet one. They are so harmless, quiet and sort of trusting that we won't hurt them, as they are too slow to escape. I just hope that more people do the same and don't bother them by picking them up and stressing them. Take a good look at them, get to know them, share the bush with them. 

I particularly like how the scales around their eyes fit together so well. The dust highlights this one's features and it's eye is intensely focused on the camera lens -  a big eye from its perspective.

It is obvious how they gained their name, shingleback, the scales along their back fit together like shingles on a roof, and they are just as efficient at casting water. But that dust does tend to get into all the cracks.

 Spring Frogmouths

After a long slow winter, people-wise, due to obvious reasons, spring is now well on the way here in Canberra and fieldwork is in full swing. There was good rainfall in autumn and winter, and the plants have turned the landscape green. The Tawny Frogmouths Podargus strigoides however have of course stayed in their neutral grey colouring. Like this pair sitting in the sunshine, one above the other. 

The male was highest, sitting between grey branches with his head tilted up to the sun.

The female has more red on her collar, the females usually have more red (tawny) in their plumage than the males. In this spot, the red and grey fits well with the red and grey of the tree bark. Do the birds know this, the colour of the background and their plumage, and select roosting sites to suit?

Meanwhile, at another territory, the birds already have eggs and the male was sitting as they do during the day. They share incubation at night when they have to hunt for themselves.

A closer view of the male on the nest, showing trust in his camouflage and 'dead branch' pose for protection.

Autumn Frogmouths

It's now late autumn in Canberra and the Tawny Frogmouths are settling into their winter roosts. Each pair seems to have a favourite perch where they will spend most of the winter days, although they will occassionally move to other perches nearby. They like to use dead branches on the northern side of a live tree where they can bask in the sunshine. And they settle close to the trunk, where they blend in well with the background tree structure.

The female is usually perched behind the male, closest to the trunk. He is larger than her, and females in most animal populations are the more important sex as they lay the eggs. This female is peeking over her partner's shoulder. He might appear to be asleep in the sunshine, but he will be watching me through almost closed eyelids.

Even from a more favourable aspect to see them against the sky, they are still well concealed. They match the form of the dead branch as well as the colours.

This is how they were when I found them, basking with heads tilted back, to catch maximum warmth from the sun. And that was how I left them.