Angry Birds | Shoveler takes out Stilt | Dowitcher rams Teal

Two examples of overt heterospecific aggression in birds at a fall migratory stopover (Palo Alto Baylands). (1) A Northern Shoveler (Spatula clypeata) rams over a Black-necked Stilt (Himantopus mexicanus). (2) A Long-billed Dowitcher (Limnodromus scolopaceus) rams into a much larger male Blue-winged Teal (Spatula discors). In both cases the aggression is directed against a resting bird and appears to be unprovoked. In both cases the assaulted bird did not retaliate, and the neighboring resting birds scarcely reacted to the commotion. It’s not clear to me what this aggression is about. It might be related to competition for resources (food/shelter), as flocks move in and out with the changing tide. For the most part birds of the same species flock together. Could it be a territorial standoff between ducks and shorebirds?
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[@FollowThomas]

Looks like an important hotspot for migrating shorebirds. 🙂

[@CliveBramham]

Yeah, this is a prime spot. Massive flocks of shorebirds and ducks. All the best.

[@knutfugl]

Interesting movie Clive.
I wish you a pleasant Sunday.
Kind regards, Knut.

[@CliveBramham]

All the best. Hope you're having a good summer.

[@knutfugl]

Yes, thank you. ◕‿◕
You too.

[@1890atrs]

Amazing scenery !!

[@CliveBramham]

The Baylands are beautiful! Have you seen the video "Kites over Kyoto"?

[@1890atrs]

@@CliveBramham I saw now "Kites over Kyoto". Thank you for teaching me.

[@rafapajestka-nalesnychscie8167]

Piękne zdjęcia i film. Super realizacja . Pozdrawiam serdecznie i zapraszam do polskich lasów🌲🌳🌿

[@CliveBramham]

Chciałbym. Polska jest cudowna do łowienia ptaków. Lasy są magiczne. Google translate of "Would love to. Poland is wonderful for birding. The forests are magical"