https://ebird.org/view/checklist/S44917797
https://ebird.org/tx/view/checklist/S44917721
https://ebird.org/view/checklist/S45023633
Audubon article about this hawk:
https://www.audubon.org/news/a-mexican-hawk-maine-has-somehow-survived-two-snowstorms
More info about Great Black Hawks:
https://neotropical.birds.cornell.edu/Species-Account/nb/species/grbhaw1/overview