The forest type is dry mature Sal and mixed forest with thick under-growth and is good for birds of eastern lowlands. The forest extends from the base of Dharan foot hills and to the Chatara. The Patnari forest range is the best area for bird watching. It is in between Dharan and Chatara. Recommended length of bird-waching is from one to three full day. This forest is an hours drive from Kusaha, Koshi Tappu Headquarters.

Specialties:

Residents: Rufous-bellied Eagle (rare), Red-thighed Falconet, Red Jungle Fowl, Pompadour Green Pigeon, Moustached Parakeet, Green-billed Malkoha, Crested Tree Swift, Blue-bearded Bee-eater, Oriental Pied Hornbill, Blue-eared Barbet, Rufous and Himalayan Golden-backed Woodpeckers, Common and Large Woodshrikes, Golden-fronted Leafbird, White-rumped Shama, Pale-chinned Flycatcher, Black-napped Monarch, Abott's Babbler, Thick-billed and Pale-billed, Scarlet-backed Flowepeckers, Black-hooded Oriole, White-bellied and Bronzed and Greater-racquet Drongos, Ashy Woodswallow and Hill Mynah.

Summer (regular)- Black Baza, Red-winged Crested Cuckoo, Blue-tailed Bee-eater, Black-headed Cuckoo-shrike and Orange-headed Ground Thrush.

Cultural destination: Varahakshetra

Varahakshetra, is located at the confluence of Sapta Koshi and Koshi rivers of Sunsari district. Through is solitude and shadowed. It is one of the most famous pilgrimage sites of the Hindus from the time immemorial. It is one among the four holy Chhetras of Hindu pilgrims two of which Varahakshetra and Muktinath are in Nepal and the rest lie in India.

Varaha or the boar is the third of the ten incarnations of Lord Vishnu. It is believed that it was the Varaha from of Lord Vishnu that saved the earth from a deluge. Almost all the Puranas state that Varahakshetra of Nepal is the main site where the Baraha form of lord Bishnu originated. Vedas also indicate this story.

Just little below, there are two temples of Guru Varaha and Nageshwor with the row of Surya Varaha, Koka Baraha and Indra Varaha temple to the east. A Dharmasala (guesthouse) is also located there.

The main temple of Varaha stands on the left side of the entrance, while an old Dharmasala occupies the right side. The inscriptions in the temple precinct state that this temple was restored in 1783 AD by a priest of Chatara Matha (Monastery) named Shiva Bharati. One of the inscription installed there also states that is was destroyed in the earthquake of 1934 A.D. and could be renovated only after a year.

A huge number of devotes from Nepal and India come here to perform obsequial rite and burry the ash into the river Koka after burning the deceased, for they believe it to be holy and virtuous deed.

Haribodhani Ekadasi (October - November) and Maghe Sankranti (mid Jan.) are some mentionable occasions when pilgrims from very far come here to pay homage to Lord Vishnu.

Situated at the naturally beautiful premise on the foothill of Churiya-Mahabharat Parbat and by the bank of the great Sapta Koshi River, Varahakshetra is not merely a Pilgrimage but one of the best sights seeing places in the region. It is well connected by roads. To reach there, one can find bus from anywhere in the country to Dharan or Biratnagar. From Dharan vehicles on sharing basis or on hire are readily available. Similarly, rafting from Dolalghat in the Sunkoshi river can be done out at Chatara, from where Varahakshetra is only an hour's walk.

Cultural destination: Vijayapur

Vijayapur is a flat Churiya hillock, which uninterruptedly over looks the flat green Terai on its south and the city of Dharan in conch shell shape. It lies at a distance of about 3 km north-east of the main core of Dharan City. Clustered and enshrined with many important temples of the region Budhasubba and others as Sitaladevi, Shiddhivinayak and Bhimsenstan, Vijayapur is the most important pilgrimage site in the region. Situated vary near to Dharan, a foothill city, Vijayapur is naturally adorned with typical geo-topography and has a congenial climatic condition, It is a historical township from where the rules in the historic age used to exercise their kingship as the capital. It includes the sen dynasty to Raya and other in between. The presence of an ancient ruined place of the Sen dynasty is another archaeological adornment of Vijayapur, which is now disappearing amidst a tropical forest. Valued by Hindu from prehistoric period as the place where 'Pancha Pandavas' conducted 'Maha Yagya' in 'Dwapar Ear' (Ear with Krishna as the incarnation of Lord Vishnu at the time of Mahabharata Epic age), Vijayapur is equally holy place for Mongolins as the place where the shrine of Budha Subba existed. To reach there from Dharan, it takes only 45 minutes climbing and cars on rent are also available at the Dharan Bus Park.