HomeGlossary Birding slang Patch A local area that a birder visits regularly. Patch birding builds deep knowledge of seasonal change and produces valuable records. Birding slangRelated termsFull glossary Big Day An attempt to record as many species as possible within one calendar day. Pishing Making a "pssh-pssh" sound to draw small, curious birds out of cover. Dip To miss a bird you went looking for. Twitch To travel to see a rare bird found by someone else; a twitcher is someone who does this. Life list A running list of every species a birder has seen. Lifer A species you see for the first time in your life.