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Datum

Ort

Half Moon Bay SB--Venice Beach and Pilarcitos/Frenchman's Creek Mouth
San Mateo, California, United States
Medien von diesem Ort Illustrierte Checkliste
Karte
Karte Koordinaten: 37.4770523, -122.4492789
Alter
nicht spezifiziert
Geschlecht
nicht spezifiziert
Verhalten
Fliegend; Fressend oder Nahrung suchend
Tags
Schwarm

Kommentare

Digiscoped

Beobachtungsdetails

One of the most incredible things I’ve seen. Took up the ENTIRE Half Moon Bay inshore. Once they began to stream north toward the harbor, I watched in my scope rows of ~26 by a column of ~20 moving through in frame for 2 seconds. This flow went on for at least 30 minutes and did not appear to be looping as I could see them fill the end point by the harbor and nothing going south in the distance. ChatGPT helped me estimate because I’m a dumb dumb: “If your field of view contained ~520 birds at any moment and each stayed in frame for 2 s, then the flow rate is 520 ÷ 2 = 260 birds/s. Over 30 min = 1,800 s → 260 × 1,800 = 468,000 unique birds passing through your view.”

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30.66 MB