animal animals background beetle beetles belgian belgium bird birds britain british carnivorous close close-up close-ups closeup closeups collurio cut cut-out cut-outs cutout europe european excubitor exoskeletons fauna food france french German germany great grey indigestible insect insects Kingdom laniidae lanius leg legs nature netherlands nourishment nourishments nutrition ornithology out outs passerine passerines pellet pellets predatory prey red-backed regurgitate regurgitated remains shells shields shrike shrikes songbird songbirds uk undigested United up ups white wildlife