October 5 hike toward Datong mountain 大桶山 from SiKanShui 四崁水 to the north after typhoons Soudelour 蘇迪羅 and Dujuan 杜鵑. The trail up to Datong mountain 大桶山 is damaged and difficult to follow up through the broken planted pine slope. We turn around after an hour lost on the hill side.
Butterflies:
- see Papilio memnon heronus 大鳳蝶
- Glassy Tiger 姬小纹青斑蝶 (xiǎowén qīng bān dié) Parantica aglea maghaba
- Chestnut Tiger 青斑蝶 (qīng bān dié) Parantica sita niphonica
- Leopard Spot 姬黃三線蝶 (jī huáng sānxiàn dié) Symbrenthia hypselis scatinia
- Common Five-ring 台灣波紋蛇目蝶 (táiwān bōwén shémù dié) Ypthima multistriata
- Common Palmfly 紫蛇目蝶 (zǐ shémù dié) Elymnias hypermnestra hainana
- Purple Sapphire 紅邊黃小灰蝶 (hóng biān huáng xiǎo huī dié) Heliophorus ila matsumurae
- Common Hedge Blue 台灣琉璃小灰蝶 (táiwān liúlí xiǎo huī dié) Acytolepsis puspa myla
- Skipper 狹翅弄蝶 (xiá chì nòng dié) Isoteinon lamprospilus formosanus
Dragonflies:
- Formosan Piedwing Psolodesmus mandarinus mandarinus 中華珈蟌 (♂ because of the small white spot at the tip of the wings)
Other insects:
- locust Parapodisma sp. 瘤喉蝗
Birds:
- Gray Wagtail Motacilla cinerea 灰鶺鴒
- hear Taiwan Sibia Heterophasia auricularis 白耳奇鶥
- Grey-cheeked Fulvetta Alcippe morrisonia 繡眼畫眉
- Taiwan Blue Magpie Urocissa caerulea 台灣藍鵲
- Grey Treepie Dendrocitta formosae 灰樹鵲
Reptiles and amphibians
- lizard 攀蜥屬 (pān xī shǔ) Japalura sp.
- Dan sees the gray tail of a snake in the downed limbs moving away from the trail.