C. R. "Chuck" Downing
shared:
7/25/2017 1:05:07 AM
Reply#SciFact The arctic tern racks up about 44,000 frequent flier during migration @SherryFrazier https://t.co/XKS0pLJj9V
— C.R. Downing (@CRDowningAuthor) July 25, 2017