From South Carolina’s lowcountry to Brazil’s vast Pantanal, we have been following Palmetto and Bluff, the first-ever GPS/satellite-tagged breeding pair of Swallow-tailed Kites.
Since tagging Bluff in 2014, we have been learning how the nesting activities, migrations, and wintering destinations of these mates compare. During the breeding season, we saw contrasting movements and behaviors of the adults in their respective parental roles. Bluff, the male, did nearly all the foraging, while Palmetto, the female, spent most of her time incubating, brooding small young, and remaining near the nest until her young fledged and became independent.
By mid-June, Palmetto and Bluff successfully fledged one young. Late in the nesting cycle, Palmetto started ranging farther from the nest, using the area between Palmetto Bluff and the Savannah National Wildlife Refuge and lands along the New River in South Carolina. Bluff, however, lingered on his foraging range until 17 July, when he also headed to the Savannah National Wildlife Refuge and then north up the Savannah River west of Allendale, South Carolina.
|Palmetto, newly outfitted with a GPS/satellite
transmitter and ready for release in 2011.
Bluff started south on 12 August, exactly two weeks after Palmetto’s departure. He moved quickly on his way to Florida, spending one night near the St. Marys River (the Florida-Georgia border) and one night south of Gainesville, Florida, before crossing southeast to the Lower Wekiva River Preserve State Park. On 17 August, he flew all the way to Okaloacoochee Slough State Forest west of Lehigh Acres, Florida, and was south of the Florida Keys by 1:00 pm the next day on his way to western Cuba. Flying through the night just off the island’s northwestern shore, Bluff continued another 130 miles across the Yucatan Channel, reaching Cancun, Mexico, at 11 pm the night of 20 August. By contrast, Palmetto had reached this coastline 17 days earlier and 175 miles to the south. By 29 August, Bluff had crossed from Nicaragua into Costa Rica close to the Caribbean shoreline, and by 9 September had crossed the Andes into Peru. He spent about a month meandering southward on his way to his winter range in Brazil.
|Sunrise at Palmetto Bluff, South Carolina.