I've enjoyed all the reports of the Ivory Gull with envy. My life sighting was a "satisfactory, but not satisfying" view of it in flight, briefly, over a landfill near Duluth on a fieldtrip at the Sax Zim Bog festival one cold February. Might I even dream of this one hanging around for two more weeks until I am back in Missouri?
Several of you have taken time to share useful ways to keep track of it and other rare bird sightings. The following is a truncated version of my daily ebird rarities alert to which I subscribed on this page. http://ebird.org/ebird/alerts
You can set preferences to hourly, if you wish. The same reports which I've included on the gull are included for each of the other species.