Showing posts with label Research. Show all posts
Showing posts with label Research. Show all posts

Sunday, 14 June 2015

Forest Birds Research - Luo Fu Shan, Huizhou

My 3rd research trip with Captain Wong. This time we travelled to Luo Fu Shan (羅浮山) near Huizhou, approximately 100km from Hong Kong. Brother Kei, a friend of Captain was kind enough to be our driver of the trip. We left Hong Kong from Huanggang Port at around 6:30pm, and walked to the carpark where Brother Kei kept his car in Shenzhen. After dinner we set off for the two hour drive towards Luo Fu Shan.

Forests at Luo Fu Shan

Luo Fu Shan is one of the ten sacred Taoism mountain in China. Standing at 1296m is the summit Fei Yun Ding. The climate is quite typical of sub tropical ever green forest of South China, where it is wet and humid all year round. It is now a major tourist attraction near Huizhou, which no doubt causes some disturbance to the forest. Though it is reputed as a good birding site close to Hong Kong, this mountain is no doubt extremely under birded, with very little local birders or visiting birders going, many potential species may still be lurking somewhere waiting to be added onto the list! A few key species make this place worth going, including Silver Pheasants, Chinese Bamboo Partridges and Spot-breasted Scimitar-babblers which have been recorded here before.

Though we encountered some heavy traffic at Shenzhen, it was quite smooth rest of the way. We chose a nearby hotel that was reasonably priced and stayed the night there. Upon arrival we heard an Oriental Scops Owl calling outside, a species rare in Hong Kong.

We got up at 6am and headed to the park entrance around 6:30am. Unfortunately, the park gate doesn't open until 7am! We could not find any information about the opening hours beforehand, the lack of information can be quite frustrating. Many Barn Swallows were seen nesting near the park entrance. The entrance fee set us back 60RMB each! Which we thought was overpriced.

Barn Swallow

We quickly got the tickets when the ticket booth opened and started our ascend up the mountain. We don't plan to go all the way up top, but were more interested with the forest near the lower to middle slopes. Upon one of the first interesting bird we saw was a Drongo Cuckoo, a species that actually breeds here in the summer, but only recorded as a vagrant during migration season in Hong Kong. It's distinctive "I'm a Drongo Cuckoo" call is hard to miss. A juvenile Scarlet Minivet caught my sight, it carries the pattern of a female and reddish tint from the male.

Roads going up the mountain were quite well built

Drongo Cuckoo

Scarlet Minivet juvenile

Chinese Barbets kept calling constantly, another species that was not recorded in Hong Kong until this year, but is very common here. Chestnut Bulbuls and Mountain Bulbuls were moderately common.

Chestnut Bulbul

Mountain Bulbul

We finally got a good look at a Chinese Barbet further up, one individual responded well to playbacks and gave fairly good views, though not good enough for any proper good photographs. This beautifully coloured Barbet seems to be increasing in numbers and no doubt have the potential to spread and colonise Hong Kong. The recent record from Tai Po Kau is still under review, but I am surprise this species have not been recorded earlier considering how common they are up here just 100km away from Hong Kong.




Chinese Barbet

Bird activities were a bit slow, we didn't see much else except a flock of Striated Yuhinas and Blue-winged Minlas. A pair of Minlas were showing nesting behaviours, they no doubt are breeding residents here. interestingly, the Blue-winged Minlas in Hong Kong have been long considered to have came from a captive origin. Finding wild populations towards the North may help us understand further whether some species could have been part of the original avifauna in Hong Kong.

Blue-winged Minla

We reached to a platform near the upper cable car station, but we heard thunder brewing up in the clouds above and decided against going up any further. We saw a Changable Lizard basking on top of a dead trunk. On our way down, a sudden downpour came in a flash and soaked us through! Nothing could shelter us from the heavy rain so we just tried our best not to get our equipments and bags too wet. We finally reached a small shop and took shelter there, the rain didn't last long and soon the sun came back out again. But the rain have left us completely soaked from head to toe.

Changable Lizard

After the rain, bird activities picked up slightly, we got quite a few Black Bulbuls but they stayed quite far away. A male Orange-bellied Leafbird basked in the sun to dry itself off after the downpour. Just around the same area we found yet another Drongo Cuckoo.

Black Bulbul

Orange-bellied Leafbird

Drongo Cuckoo

Further down we saw a few Grey Treepies, a juvenile was kind enough to show itself to us in full view. This is quite a shy species and good views are not always easy. Scarlet Minivets were very common. A very large Ground Beetle was seen feeding on a dead earthworm, I am no insect expert but it looks to be one of the calosoma sp.

Grey Treepie

Scarlet Minivet

calosoma Beetle sp.

Back down near the entrance, a pair of Great Barbet called from a tall tree. It took us a while to locate them. I haven't seen this species in Hong Kong for quite a long while, surprisingly this is one of the declining forest bird species in Hong Kong at the moment. I only managed a record shot of this species, but this is only my first photo record!

Great Barbet

Though we didn't encounter anything particularly exciting, Luo Fu Shan proof to be a site that is well worth visiting. The forest seems to be holding up quite well with some fairly mature patches. The fact that many ground and undergrowth dwelling birds can be found suggest that stretches of more primitive forest have survived. Certainly a perfect weekend destination from Hong Kong for getting the few species we don't usually see.


Sunday, 19 April 2015

Forest Birds Research - Yinpingshan Forest Park

This is my second research trip to China with Captain, this time we went to Yinpingshan Forest Park 銀瓶山森林公園 (40km from Hong Kong), a site close to the large town of Zhang Mu Tou, the forest park is another 8km from the town. We met up on Saturday night and took a train to Zhang Mu Tou, which only took 20 minutes. We found a hotel immediately after we got there, at around 260RMB/night the room was very luxurious and very comfortable. There was even a 24hour KFC right next to the hotel, just tells you how much mainland have advanced in these two decades...

We started early, a quick local KFC breakfast (soya milk and fried Chinese cruller!) got us ready for the hike later. We found a taxi with ease and was at the entrance gate of Yinpingshan Forest Park in no time. There aren't many trails to choose from like many other forest parks in China, but we decided to take a trail call Guan Yin Zuo Lian Gu Dao (觀音坐蓮古道), which is a trail that runs through the lower forest of the park. Habitats here are secondary forest, with original forests likely deforested many decades ago, these forests seems to be maturing well at the age of 30 to 40 years old.

Entrance Gate

Site Map

We headed towards the trail, immediately seeing a couple of Cinerous Tits, few of them were young fledglings, likely the first brood this season. A Chestnut-winged Cuckoo called nearby, I imitated it's two-note whistles and quickly got a response, though the bird flew close it never came out of the cover, as is the case of many encounters with this species.

Cinerous Tit juv.

A few hundred meters up, we encountered a very small bird wave, we were first attracted by the unexpected call of a few Silver-eared Mesia, though very common in Hong Kong, they have always been thought to be escaped exotics as their natural range lies further west. They have never been recorded at Yinpingshan, and seeing them here makes me wonder whether there are possibilities of wild populations existing in Guangdong. Though there are also the possibility that these have been decedents of escapees as well, more research must be done to get a clearer picture on this matter!

While we looked for the Mesias, I saw a tiny bird flew up and perched on a branch close by, I picked up my bins to find myself staring at a Speckled Piculet! Another real surprise! A recent coloniser into Hong Kong's forests, this species likely expanded it's range from forests like these. We saw and heard a total of at least 6 individuals on the trip, indicating that this species is doing fairly well here.


Speckled Piculet

A Besra also flew into sight, making ariel displays in the area.

Besra

As we continued, we found the forest trail here quite productive, we got birds including Chestnut Bulbul, Mountain Bulbul, Emerald Dove, Grey Treepie, Grey-throated Minivet, Scarlet Minivet, Hainan Blue Flycatcher, Brownish-flanked Bush Warbler, Large Hawk Cuckoo, Pygmy Wren Babbler, Mountain Tailorbird, Greater-necklaced Laughingthrush, White-bellied Epornis and Japanese White-eye. Another surprise was a Hodgson's Hawk Cuckoo, it was calling nearby, with a little taping it flew right towards us but didn't stop and flew on. A Slaty-legged Crake was heard as well, but it didn't showed.

Over looking the forested valleys

Chestnut Bulbul

Scarlet Minivet

At the end of the trail, we reached a stream, where numerous Green Cascade Frogs were found calling and mating, they are far less common in Hong Kong and I found them a welcoming sight! At the same stream, Captain spotted a Slaty-backed Forktail at a distance, another bird that is rare in Hong Kong but remains quite abundant in mainland China.

Green Cascade Frog

Slaty-backed Forktail

We hit the main road and decided to follow it down back to the entrance gate. On the way down, we encountered a small flock of Chestnut-collared Yuhinas, foraging together along the road. They gave great eye-level views and one particular bird caught a stick insect and gave us quite a show! As you can see, it took the bird quite a while to swallow the stick insect, but it certainly looked satisfied! A likely breeder here, Chestnut-collared Yuhinas have long been recognised as a winter visitor in Hong Kong, but with colonies at such close proximity to Hong Kong it seems likely they will become a resident species very soon. I have only recently realise about their split from Striated Yuhinas.








Chestnut-collared Yuhina

Just incase you wonder how people in China build trails up a mountain...we saw many Mules along the main road, looks like they are using them to carry rocks and bricks up the mountain. Tough life.

Mule!

All in all, a very successful research trip, especially on finding a good number of Silver-eared Mesias here. Also good to know the numbers of Speckled Piculets seems to be stable and likely increasing, which means we will likely see more of this species in Hong Kong's forest very soon. An interesting observation though, I don't recall seeing many Crested Mynas on both my research trips, a bird which I immediately saw when we crossed the boarder. Maybe we should be more grateful about these common birds, we do take many of these species for granted...

A bird we take for granted - Crested Myna

Saturday, 28 March 2015

Forest Birds Research - Qiniang Mountain, Nan Au

A weekend spent with Captain Wong at Qiniang Mountain(七娘山)near Nan Au, a National Geology Park located at Mirs Bay peninsular in Shenzhen. The purpose of the trip is a forest bird research around Southern Guangdong near Hong Kong, where we will like to survey the species recorded and the habitat status of various sites. This may give us an insight into understanding the spreading and colonisation of species back into forests in Hong Kong or vice-versa.

Young secondary forest of Qiniang Mountain

We took the 6pm bus from Kowloon Tong to Nan Au on Friday night, spent a night at a local hotel there. Rooms were fortunately very tidy, however the town of Nan Au really don't have much charms to it...It's a sea side town that supposedly popular amongst local tourists for it's sea food; which we opted not to try to be safe.

Over looking Mirs Bay towards Tung Ping Chau in Hong Kong

We woke up at 6am, after some light breakfast we headed out to Qiniang Mountain, a small mountain standing at 870m high. The hiking trail was located quickly, it was a short trail that runs from the bottom to the top of the mountain, so it was extremely steep, a vertical climb of nearly 700m in only 2km of trail! I guess the government didn't really give the trail much thought when they built it. It was an exhausting climb with steep steps, our heavy gear did not help much.

Habitats were not great, mostly very young secondary forest, there were very little big trees, which explains to absent of several tree depending species. There were also very little understory birds, which suggest a period of near complete deforestation in the past.






We travelled from near bushland to young secondary forest, the forest disappears again near the 750m mark, where grassland take over at the top. As the trail travelled in a straight line, the area we were able to survey was very limited, hence we saw very little birds, most of our records were heard...

A common bird here, the Fork-tailed Sunbird were everywhere.



Scarlet Minivets were also very common, not surprising as they do thrive in secondary forests in Hong Kong as well.


An interesting record, we heard a few Rufous-tailed Robin in Spring song! A first time for me.


Sooty-headed Bulbul were recorded lower down, they are open country birds.


Other interesting birds recorded as heard or seen only were Mountain Tailorbirds, Pygmy Wren Babblers, Asian Stubtails, Brownish-flanked Warblers, Red-billed Leothrix and Lesser Shortwing. Pygmy Wren Babblers and Lesser Shortwings were both interesting, as they only started to be recorded in Hong Kong just over a decade ago. The present of Red-billed Leothrix was also interesting, this species was suggested to be of ex-captive origin in Hong Kong, but Captain have found they were present in nearly all locations outside Hong Kong, making this a possible candidate of the original avifauna! More studies will help us understand this.

All in all, a successful trip of research!