https://blog.allaboutbirds.org/guide/Red_Crossbill/species-compare/63736721
Similar Species to Red Crossbill, All About Birds, Cornell Lab of Ornithology
Similar looking birds to Red Crossbill: White-winged Crossbill Adult male, White-winged Crossbill Female, House Finch Adult male, House Finch Female/immature,...
all about birdsred crossbill
https://feederwatch.org/explore/rare-birds/red-crossbill-17/
Red Crossbill - Project FeederWatch
May 2, 2016 - Saw also on March 3, 2016
red crossbillproject