Agustín Esmoris is an Argentinian birding guide and professional wildlife photographer. He has led hundreds of custom birding and nature tours throughout Patagonia and central Argentina, adapting each outing to the interests and pace of his clients—whether it’s a single day in the field or a more comprehensive multi-day expedition.
As a passionate naturalist, Agustín serves as the official eBird reviewer for Eastern Patagonia, collaborating closely with the global birding community to validate and ensure the accuracy of regional bird observations. His dedication has also led him to publish scientific papers on endemic species (including the White-throated Cacholote, Black-crowned Monjita, Rusty-backed Monjita, and White-banded Mockingbird), and to author the field guide Birds of Península Valdés, a 12-year research project. Additionally, his photography has appeared in renowned publications such as National Geographic, the American Museum of Natural History magazine, Natural History magazine, and Lynx Edicions.
Agustín’s goal is to immerse travelers in the rich biodiversity of Eastern Patagonia. From spotting rare birds and marine mammals to sharing insights on local flora and paleontology, he tailors each tour to provide a deeper appreciation of the region’s wildlife and landscapes.
As a passionate naturalist, Agustín serves as the official eBird reviewer for Eastern Patagonia, collaborating closely with the global birding community to validate and ensure the accuracy of regional bird observations. His dedication has also led him to publish scientific papers on endemic species (including the White-throated Cacholote, Black-crowned Monjita, Rusty-backed Monjita, and White-banded Mockingbird), and to author the field guide Birds of Península Valdés, a 12-year research project. Additionally, his photography has appeared in renowned publications such as National Geographic, the American Museum of Natural History magazine, Natural History magazine, and Lynx Edicions.
Agustín’s goal is to immerse travelers in the rich biodiversity of Eastern Patagonia. From spotting rare birds and marine mammals to sharing insights on local flora and paleontology, he tailors each tour to provide a deeper appreciation of the region’s wildlife and landscapes.

Agustín has led hundreds of professional birding and nature tours throughout Patagonia and Central Argentina.

Agustín’s photography has been featured in National Geographic and other prestigious publications.

Join Agustín Esmoris on a custom tour in Eastern Patagonia.
Why Bird With Us
- Expert-Led Tours: Guided by field ornithologist and author of Birds of Península Valdés — Agustín Esmoris — a National Geographic-published wildlife photographer, Eastern Patagonia’s official eBird reviewer, and seasoned guide with 20 years of local experience.
- 100 % Private & Tailored: Every itinerary is custom-built around your target species, fitness level, and schedule — from half-day cruise excursions to multi-day expeditions.
- Endemics & Iconic Wildlife: Specialised routes for Argentina’s hard-to-find endemics plus marine giants such as Southern Right Whales and playful Commerson’s Dolphins.
- Ethical & Conservation-Focused: Small-group philosophy, adherence to ABA Birding Ethics, and continuous contribution of field data to science ensure responsible, low-impact experiences.