chhotii

I can do this without using anything that is programmable (like sed or awk):

for FILE in *
do
    paste <(head --lines=-1 $FILE) \
         <(while read X; do echo Throat-warbler-mangrove ; done <$FILE) \
         <(tail --lines=+2 $FILE) |
    grep -n $'jpg.*\tThroat-warbler-mangrove\t.*jpg' &&
    echo $FILE
done