Gulf Eagle Gulf of Mexico Pelagic

McIntyre Birding Tours offers some of the most ambitious dedicated offshore seabird pelagics available anywhere on the US Gulf Coast — day trips and extended 48-hour overnight voyages aboard the Gulf Eagle, a 72-foot offshore charter vessel departing from Deep Sea Headquarters in Port Aransas, Texas. The operation is run by Captain Jon McIntyre, who combines 25 or more years of offshore fishing experience in the Gulf of Mexico with two decades of focused birding — making him one of the most knowledgeable pelagic birding guides operating on the northern Gulf. McIntyre runs his seabird-specific programme under "McIntyre Birding Tours" at mcintyrebirdingtours.com.

Port Aransas sits on Mustang Island on the northern Gulf of Mexico coast of Texas, with direct access to the open Gulf through the Port Aransas Ship Channel. The Gulf Eagle departs Deep Sea Headquarters — one of the port's most established offshore fishing centres, at 440 W Cotter Ave — and steams south and southeast into the productive offshore waters of the northwestern Gulf of Mexico. Day trips run approximately 12 hours and travel well beyond the continental shelf; extended 48-hour trips push further, going up to 200 miles offshore into the deepwater Gulf, reaching the Loop Current system and offshore convergence zones where pelagic seabirds concentrate in highest density.

The Gulf of Mexico's offshore zone holds a distinctive suite of tropical Atlantic and Caribbean seabirds that are poorly represented at most North American pelagic sites. Band-rumped Storm-Petrel (Hydrobates castro), the primary deep-water storm-petrel target on Texas offshore trips, is a small, square-tailed, tropical Atlantic storm-petrel that breeds on islands in the eastern Atlantic (Macaronesia, Ascension, St. Helena) and is one of North America's most difficult storm-petrels to see at sea. The deep blue waters of the open Gulf — reached most effectively on the longer 48-hour offshore voyages that go beyond the shelf break — are where this species is most reliably encountered. Fish-oil chumming is used to attract birds to the vessel.

Scopoli's Shearwater (Calonectris diomedea) — the Mediterranean-breeding taxon of the Cory's complex, currently recognised as a distinct species by several authorities — is substantially more common in Texas offshore waters than the Atlantic-breeding Cory's Shearwater proper, and a Gulf Eagle trip provides excellent close-range study of both forms at sea, making it valuable for birders interested in the identification nuances of this complex. The Sargasso-type Audubon's Shearwater — a potential undescribed species in the Audubon's/tropical shearwater complex — is regularly encountered at depth in Gulf waters. Bridled Tern (Onychoprion anaethetus) and Sooty Tern (O. fuscatus) are abundant in the offshore zone from summer. Brown Booby (Sula leucogaster) is a regular deep-water species; Masked Booby (S. dactylatra), Red-footed Booby (S. sula), and Magnificent Frigatebird (Fregata magnificens) also occur. Pomarine Jaeger is the most likely skua; Long-tailed Jaeger and South Polar Skua have been documented on Gulf of Mexico offshore trips.

The exceptional target of the 48-hour extended voyages is Black-capped Petrel (Pterodroma hasitata, IUCN Endangered) — a large gadfly petrel that breeds in cliff burrows in the mountains of Haiti and the Dominican Republic and disperses into the western Atlantic, Gulf of Mexico, and Caribbean. It is one of the most charismatic and sought-after birds in the western Atlantic, and the extended offshore voyages that push 150–200 miles into the Gulf offer some of the most realistic opportunities to encounter it in US waters. Yellow-nosed Albatross (Thalassarche chlororhynchos), Wedge-tailed Shearwater (Ardenna pacifica), Red-billed Tropicbird (Phaethon aethereus), and Brown Noddy (Anous stolidus) are among the rare species recorded from this offshore zone.

To book a trip or check availability, contact Captain Jon McIntyre directly at [email protected] or by phone on (361) 749-5597. Day-trip pricing is approximately $150–250 per person; extended 48-hour trip pricing is available on request. The mcintyrebirdingtours.com website carries current schedule information and trip details. Trips depart from Deep Sea Headquarters, 440 W Cotter Ave, Port Aransas, Texas 78373.