Identification Preserves Uncertainty as Observer Claims 'Distinctive Flight Pattern' for Bird That Was Clearly a Pigeon

The pigeon had already reached the lamp standard when Teddy Kwan's note went into the thread: distinctive flight pattern, possibly of interest, no photo.

What was observed, per the note: a gray bird, quick flicking wingbeats, a straight unhurried line from the hedge to the roof, an audible clap on takeoff that nobody else in the group reported. Iridescence at the throat was added by a second observer four hours later, from memory.

"I know how it reads," Kwan wrote. "I'm not saying it's rare. I'm saying the flight was distinctive."

Flight pattern is the one piece of evidence a birder can collect without gear, without a recording, and without anybody else agreeing to stand there with you. It is also the only kind that gets stronger the less you write down. Kwan's note runs to nine words and a photo field that reads "pending."

Vera Iverson, who has been applying every flight-pattern recommendation she has found online simultaneously since March, reported the same crossing twenty minutes afterward as "low, then high, then low again," a description she credited to one guide and contradicted with a second inside the same message. She cannot say which of the two she followed. She says both of them worked.

Petra Evers ruled on the matter in a single paragraph, as is her habit. "Flight pattern is admissible as observation and inadmissible as identification," she wrote. "A distinctive flight pattern requires at least three consecutive wingbeat cycles, observed without interruption, without a field guide held open in the same hand, and without prior knowledge that the bird was gray." The ruling has been quoted eleven times in the thread and applied none.

I dated this one before it went any further. The identical phrase, distinctive flight pattern, no photo, appears in a 1996 letter to the state ornithology journal's exchange section (vol. 11, no. 2, p. 34), filed under a bird seen over a reservoir parking lot. I keep the clipping in a folder marked FLIGHT PATTERN (UNSOLVED). That bird was later confirmed as a Rock Pigeon when a second observer photographed it eating a french fry. The complaint attached to the original letter, that modern birders photograph everything and observe nothing, has been refiled four times since, each time by someone who was not there in 1996.

Vera Ortega's monthly update carries the entry exactly as filed: "distinctive flight pattern; identity pending." She neither softens it nor endorses it. "I record what the observer recorded," she said. "If the file says distinctive, the file says distinctive. The file is not the bird."

By the end of the week the thread held four additional flight patterns, all from the same hedge, all pigeons, all described as distinct from one another, which is a claim the species has not previously been asked to support.

Petra Evers has requested a recording, on the grounds that a flight pattern you can hear is a flight pattern you can audit. Kwan says he will try, though the bird leaves before he gets his phone up.

The record stays open, which nobody in the thread disputes, because closing it would cost somebody their pigeon. The sightings continue: the same gray bird, the same line from the hedge to the roof, most afternoons. Whether it is the same pigeon each time is unconfirmed. No one has asked for a photograph to check.