In Part 3 of her sea birds series, Ginni Callahan describes the red-footed (sula sula) boobies she studied and photogaphed while sailing and kayaking amongst the Makemo, Fakarava and Tahanea atolls in the South Pacific.
The curiosity of boobies makes them fun birds to be around. While I’ve been kayaking in Mexico, boobies have often circled overhead, peering down. Blue-footed and brown boobies inhabit those waters. On my very first kayak journey in the Marquesas, a booby almost landed on my kayak. In a frantic last minute tangle of wings, it seemed to notice that the kayak was already occupied.
Boobies in the South Pacific can be difficult to tell apart because they have so many variations of plumage and “morphs”. Red-footed (sula sula), masked (sula dactylatra) and brown (sula leucogaster) boobies are the options, according to Seabirds, by Peter Harrison.
About a week before reaching the Marquesas, we saw a black and white mottled booby which was nowhere in the book. It was seen nearby an adult masked booby. By similar size and circumstantial evidence, we decided it must be some molt in between immature and juvenile masked booby.
According to some texts, boobies are indicative of nearby islands, but it turns out those are the nesting adults and the newly fledged. The islanders have a term for the “carefree teenagers” who range far from islands in their exploration of the world before settling down to raise a family. The mystery booby in its awkward wardrobe several hundred miles east of the Marquesas must have been one of those. Henrick and I decided we must also be carefree teenagers, perhaps permanently stuck in that stage.
A completely brown booby with grey legs landed on the bowsprit railing on our passage from Makemo to Fakarava. Perhaps an immature red-footed booby, it was quite content to hitch a bouncy ride.
It wasn’t until Tahanea atoll, our last one, that I saw the first red leg on one of the mystery boobies, and positively identified one. They hide their feet well inside their feathers in flight. The many color morphs of the red booby can put the fledgling booby birder into a tailspin. There are the three different forms of white morph, the brown morph, the white-tailed brown morph, the white-headed white-tailed brown morph, and the brownish juveniles who don’t have red legs when they do show them. As if that weren’t enough, there’s also the “intermediate” category, which is without definite pattern, and may or may not have red legs. Of course these descriptions also overlap a bit with various phases of both masked and brown boobies. It’s a puzzle that keeps me engaged in the discovery.
Red-footed boobies nest on Tahanea atoll, and I was lucky enough to find one large fuzzy chick still in the nest. It watched from its shelf of haphazard sticks each bird that passed its view. Noddies, terns, and boobies all captured its attention. All color morphs of the red-footed booby wheel about the sky over Tahanea.
One evening Henrick and I rowed in to the beach for a modest bonfire. On both sides of us, at some distance, were large-leafed trees that boobies like to roost in. Occasionally another bird would fly in to claim a perch, and grumpy croaking conversations ensued from the treetops.