▁is ▁Latin ▁for ▁" spe ar - sh aped " ▁and ▁refers ▁to ▁the ▁stre aks ▁on ▁the ▁breast . ▁ ▁This ▁small ▁passer ine ▁bird ▁is ▁a ▁species ▁found ▁in ▁grass land ▁with ▁some ▁th icker ▁shr ub by ▁veget ation ▁or ▁trees , ▁often ▁close ▁to ▁water ▁in ▁b ogs ▁or ▁wet ▁clear ings . ▁Five ▁eggs ▁are ▁laid ▁in ▁a ▁nest ▁in ▁a ▁t us sock . ▁This ▁species ▁is ▁a ▁rare ▁v agrant ▁to ▁western ▁Europe . ▁One ▁of ▁the ▁best ▁places ▁to ▁see ▁this ▁sk ul king ▁species ▁as ▁a ▁v agrant ▁is ▁Fair ▁Is le , ▁Sh et land . ▁ ▁This ▁is ▁a ▁small ▁war b ler . ▁The ▁adult ▁has ▁a ▁stre aked ▁brown ▁back , ▁wh it ish ▁grey ▁under parts , ▁which ▁have ▁small ▁lance - head ▁like ▁stre aks , ▁also ▁found ▁on ▁the ▁undert ail . ▁The ▁sex es ▁are ▁identical , ▁as ▁with ▁most ▁war bl ers , ▁but ▁young ▁birds ▁are ▁y ell ower ▁below . ▁Like ▁most ▁war bl ers , ▁it ▁is ▁insect iv orous . ▁ ▁This ▁is ▁a ▁sk ul ky ▁species ▁which ▁is ▁very ▁difficult ▁to ▁see ▁except ▁sometimes ▁when ▁singing . ▁It ▁cre eps ▁through ▁grass ▁and ▁low ▁fol i age . ▁ ▁The ▁song ▁is ▁a ▁monot on ous ▁mechanical ▁insect - like ▁re eling ▁as ▁in ▁other ▁species ▁in ▁the ▁group , ▁often ▁given ▁at ▁d usk . ▁ ▁Two ▁sub species ▁recorded , ▁as ▁L . ▁l . ▁lance ol