Tag Archives: alvar birds

Carden Challenge 24-Hour Birding Marathon

May 25th & 26th, 6 pm to 6 pm: Participate in the birding challenge of a lifetime, or sponsor one of our teams. Teams of 4 traverse the Carden Alvar for 24 hours in search of the most bird species. Featuring recreational and professional team divisions. This year’s celebrity birder is long-time birder and past president of the Ontario Field Ornithologists, Jean Iron. **New This Year: Critter Search!

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