Bernard Castelein / Buddhist monk playing the Lawah (long trumpet) during afternoon pudja, Tso Kar, Ladakh, India, June 2010

Ingo Arndt / Sword-billed hummingbird (Ensifera ensifera) male nectaring on Red floripontio (Brugmansia sanguinea) flower. Eastern Andean slope, Ecuador. October.

Bernard Castelein / Buddhist monks playing long trumpets (Lawa) during Torgya festival. Galdan Namge Lhatse Monastery, Tawang, Arunachal Pradesh, India. January 2014.

Bernard Castelein / Buddhist monks playing long trumpets (Lawa) during Torgya festival. Galdan Namge Lhatse Monastery, Tawang, Arunachal Pradesh, India. January 2014.

Bernard Castelein / Buddhist monks playing long trumpets (Lawa) during Torgya festival. Galdan Namge Lhatse Monastery, Tawang, Arunachal Pradesh, India. January 2014.

Bernard Castelein / Buddhist monks playing long trumpets (Lawa) during Torgya festival. Galdan Namge Lhatse Monastery, Tawang, Arunachal Pradesh, India. January 2014.

Nick Garbutt / Sword-billed Hummingbird (Ensifera ensifera) feeding at an Angel's or Devil's Trumpet Flower (Datura sp.). Yanacocha montane cloud forest, Ecuador.

Bernard Castelein / Three Buddhist monks, preparing to play the lawah (a long trumpet) Phyang, Ladakh, India, June 2010

Bernard Castelein / Monks playing 'Lawa' (long trumpet) Lo-Manthang at the end of the 'Duk chu' festival, Upper Mustang, Nepal

Bernard Castelein / Nepalese monks playing the 'Lawa' (long trumpet) and 'Geling' (short trumpet) during 'Duk chu' festival, Chhode Gompa of Lo-Manthang, Upper Mustang, Nepal

Bernard Castelein / Napalese monks, carrying 'Lawa' (long trumpet)preparing for the final ceremony of 'Duk chu' festival, where monk's dance and prayer for a prosperous year. Lo-Manthang, Upper Mustang, Nepal.

Bernard Castelein / Two Nepalese monks playing the 'Lawa' (long trumpet) on the rooftop of the Chhode Gompa, at the end of the last ceremony of 'Duk chu' festival, Lo-Manthang, Upper Mustang, Nepal