Share this postPrimary colorscalebcrain.substack.comCopy linkFacebookEmailNoteOtherAlbumPrimary colorsProspect Park, 10-11 April 2022Caleb CrainApr 11, 20222Share this postPrimary colorscalebcrain.substack.comCopy linkFacebookEmailNoteOtherShareBlue-gray gnatcatcherGreat egretEuropean goldfinchesGolden-crowned kingletPalm warblerPine warblerPreviousNext