Thetravel100 Author
Published: July 19, 2026
Read: 6 min
In: Travel & Tours

Osprey photo by Stephen L. Tabone


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First, a little history…

World raptor expert Bill Clark (left) founded in the early 1990s. Sergio Seipke (right) formally organized the company in 2013. He owns and runs Bill is the chair of the Advisory Board. Here they are hawkwatching together on the Platte River, near Kearney, Nebraska, in March 2011.

World raptor expert and wildlife photographer Bill Clark founded in the 1990s to cater to birders who have a particular interest in birds of prey.

Tours offered by the company led to destinations that feature spectacular concentrations and/or a variety of birds of prey, including rarely seen species. The focus was on field identification and raptor behavior. The idea sprang and Bill ran many raptor tours, raptor workshops, and raptor weekends to destinations around the world and within the U.S. In 2006 Bill co-led a tour with Sergio Seipke in northern Argentina.

Bill suggested Sergio that he should offer raptor tours as a means to help fund his Raptors of South America field guide project. The idea was an appealing one: small tours would be perfect to be in the field and collect data for the book. So, Sergio started offering raptor tours himself to destinations in South America following’ guiding style and philosophy. In 2011, when Sergio and his family moved to the U.S. for a whole year, Bill and Sergio started discussing the new; Sergio would organize the company and lead international tours, and Bill would lead selected international tours, as well as domestic offerings. Other co-leaders would be hired and trained as needed.

On 28 February 2013 , L.L.C. was formally organized in Lincoln, Nebraska. The new was born.

About our logo

The Swallow-tailed Kite is a mid-sized, mostly black-and-white raptor that has long, narrow and pointed wings, a long, deeply forked tail, and a smallish, white head, features that make it arguably the most easily identifiable raptor in the continent.

The species occurs from southern-eastern states in the U.S., from South Carolina to easternmost Texas, through southern Mexico, Central America, into South America south to north-eastern Argentina, province of Misiones, and the provinces of Jujuy, Salta, and Tucumán in the north-west.

and Hawk Mountain Sanctuary team up!

Hawk Mountain logo

The global raptor touring company and Hawk Mountain Sanctuary, Kempton, have teamed up to promote ecotourism, connect people with birds of prey and help to preserve the world’s raptor diversity. As a result, will donate to Hawk Mountain 5 % of profits for every tour booked by Sanctuary members.

Today is owned and operated by Hawk Mountain trainee graduate Sergio Seipke and this new partnership provides him the opportunity to give back to an organization that has meant—and still means—so much for Sergio.

This new and remarkable partnership means that in the future Hawk Mountain members will be able to visit remote parts of the globe to see new raptors in the company of the world’s very best raptor biologists and interpreters, much as they can now do at Hawk Mountain itself.

Current offerings include Bolivia, Brazil, Mexico, Nepal, Thailand, and India, and the company and its leader have contributed to local raptor conservation programs abroad including the Chumphon Raptor Center, Thailand, and the Harpy Eagle Project, in Argentina.

FAQ

Why?

Because raptor enthusiasts often feel that regular birding tours do not quite meet their needs.

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At we focus on raptors, especially spending time observing them. Our itineraries and daily routines are specifically designed keeping raptor target species in mind. When we are in the field we observe individual raptors—sometimes for long periods—and learn about identification, field marks and behavior. We discuss their ecology and, occasionally, their taxonomy.

Instead of amassing a long bird list, our goal is to get close and personal with the raptors we encounter.

Who owns?

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, L.L.C. is owned by Sergio Seipke. The company is organized in Lincoln, Nebraska, U.S.A.

Sergio lives in Argentina, with his wife Juliana, and their two children. Bill Clark is the chair of’ Advisory Board.

What is’ philosophy?

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Our guiding philosophy is that every one of our tours, workshops, or weekends would be an enjoyable and memorable experience for our participants.

How are the destinations chosen?

We select destinations that feature spectacular concentrations and/or a variety of birds of prey, including rarely seen species.

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Raptors concentrate on migration bottlenecks, or in highly productive wintering areas. Other locations are intrinsically rich in raptor life and provide superb observation and photographic opportunities. destinations are often selected because they offer a good coverage of a particular raptor fauna.

We also visit areas where rare, local, or hard-to-see species are reliably found.

Timing is of paramount importance when visiting destinations where raptors concentrate at migration or during winter. We keep up with the latest raptor literature, technical reports, and raptor sightings, to fine-tune the timing and conduct our tours.

We monitor the tour locations as well in order to make sure that they are safe for travel and raptor watching.

How can I learn more about’ offerings?

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All our offerings are announced by email in the Quarterly E-Newsletter, and online at the website, where you can find information regarding tour dates, target species, number of raptor species expected, guides and leaders, tour difficulty, tour price, a detailed day-by-day itinerary, suggested literature for every tour, weather and clothing, entry requirements of destination countries, terms and conditions, and booking procedure.

You can request tour reports by e-mail. If you have any queries, please do not hesitate to ask.

What can I expect from?

On all’ activities, participants will…

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• See raptors up close.
• Observe raptor behavior with interpretation from leaders.
• Have local experts as co-leaders.
• Learn field marks for raptor identification, including age and sex.
• Meet and travel with other raptor enthusiasts.

How do I sign up for a tour?

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Every offering has an online page and a link to its booking form. To book a raptor tour, raptor workshop, or raptor weekend, please go to the corresponding online tour page (start here). Read carefully the information provided, and fill out the booking form.

We will contact you acknowledging your booking. Once the minimum people needed sign up on anyone tour to make it a go (usually 2-4) we will contact you with payment information.

No reservation payment is required at the time of booking, but full payment is required usually 2-3 months before the tour start date.

Can I propose a tour?

Yes!

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You certainly can. We can arrange custom raptor tours for groups of 2 to 12 participants. Please let us know time and destination you and your group would like to travel for your dream raptor tour. We will be glad to do what it takes to turn your dream into a reality.

Scheduling such tours is dependent upon our availability, so whenever possible, please plan in advance to avoid setbacks.