Continuing my Santa Clara sightings later in March, on the 21st:
“At Alviso Marina the cliff swallows are busy building nests with the resident house sparrows hoping to nick a free maternity ward when they’re done. Presumably the swallows are more than capable of repelling unwanted guests but it will be interesting to see how that transpires.
“Also after over a year of visiting Alviso I saw my first American robin for the site this lunchtime. How weird is that?”
These weren’t my first hirundines of the year because on February 23:
“Don’t tell the swallows that it’s still winter. They won’t believe you. There were dozens of tree and violet-green swallows and white-throated swifts flying to the west of the Sunnyvale WPCP this lunchtime. One barn swallow was also there.
“There looked to be an immature snow goose in with the flock of feral greylags on one of the levees. Has it been there long? Or have I just been unobservant?”