20 possible answers to
Answers with 3 characters: TIT Answers with 4 characters: CHAT LARK WREN Answers with 5 characters: FINCH PEWEE SERIN VIREO Answers with 6 characters: LINNET OSCINE THRUSH Answers with 7 characters: SKYLARK SPARROW TANAGER WARBLER Answers with 8 characters: BOBOLINK REDSTART Answers with 10 characters: MEADOWLARK BLUETHROAT Answers with 15 characters: BALTIMOREORIOLE