26 October 2022
Throughout the summer season corvids keep residence to boost their households however as quickly because the breeding season is over they transfer round. In autumn giant flocks of American crows return to Pittsburgh to hitch the winter roost whereas a number of widespread ravens present up, alone or in pairs.
By now the crows and ravens are again on the town. This fall their populations have gone by way of a number of phases.
Late August: On 30 August a shocking rely of 380 fish crows gathered on rooftops at Fifth & Craig but solely 12 American crows had been current that night.
September: By 6 September fish crow numbers dropped to 30 after which zero. American crow numbers rose by way of the tons of. No ravens.
October up to now: On 10 October a excessive rely 620 American crows flew previous “the doorknob” at nightfall. By late-October no crows had been counted as a result of they modified their route. Nevertheless we now see and listen to ravens!
Ravens on the town?
Crows migrate; grownup ravens keep at residence in winter. Nevertheless, younger ravens go away residence to go exploring till they’re sexually mature at three years outdated. From fall by way of early spring a handful of those ravens go to Pittsburgh.
Final Sunday 23 October Andrea Lavin Kossis noticed a raven over Dawson Avenue, above, that stayed within the space to dine on some “scrumptious roadkill.” The raven even had one thing to say about it.
p.s. In December I’ll enlist your assist to search out the crow roost in time for the Pittsburgh Christmas Hen Rely.
(photographs by Andrea Lavin Kossis and Kate St. John)