HomeGlossary Birding slang Dip To miss a bird you went looking for. “I dipped on the owl” means the owl was not seen. Birding slangRelated termsFull glossary LBJ Short for "little brown job": a small brown bird that is hard to identify. Big Day An attempt to record as many species as possible within one calendar day. Vagrant A bird found far outside its normal range. Life list A running list of every species a birder has seen. Pishing Making a "pssh-pssh" sound to draw small, curious birds out of cover. Jizz The overall impression of a bird from its shape, size, movement and behaviour.