From Cornell Lab of Ornithology
GBBC Sets New Records
By every measure, this year’s event topped all previous levels of participation, checklists, and species reported. Below are the figures as of March 14, 2019.
Species: 6,699 Checklists: 204,921 Estimated Participants: 224,781
Our top-10 list for species appearing on the greatest number of checklists shows the Northern Cardinal once again in the top spot.
| Species | Number of Checklists |
| Northern Cardinal | 56,785 |
| Dark-eyed Junco | 50,397 |
| Mourning Dove | 45,449 |
| Downy Woodpecker | 42,095 |
| Blue Jay | 40,386 |
| American Crow | 39,467 |
| House Finch | 37,726 |
| House Sparrow | 37,149 |
| Black-capped Chickadee | 35,757 |
| White-breasted Nuthatch | 33,284 |
Data totals as of March 6, 2019
The top-10 list above reflects species common in the United States and Canada because of continued high participation in the region. Record-breaking participation from other countries generated valuable data documenting the diversity of species across the globe. See the top-10 list below of countries reporting the greatest number of species. Asterisks represent new species number records during the GBBC!
| Country | Number of Species |
| Colombia | 1,095* |
| Ecuador | 948* |
| Brazil | 844* |
| India | 843* |
| Mexico | 755 |
| Peru | 724* |
| Costa Rica | 686* |
| United States | 669* |
| Argentina | 613* |
| Thailand | 556 |
Data totals as of March 6, 2019
Natural History Wanderings 
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