That’s what this recent arrival to Crane Lake sounds like he’s singing. It’s the Song Sparrow and his cheerful little song can be heard all over Crane Lake right now.
Sometimes their song varies a little, but the mnemonic phrase associated with his song is: Maids, Maids, Maids, put on your tea kettle, leddle, leddle, leddle.
“A mnemonic device (pronounced /nəˈmɒnɪk/) is a memory aid. Mnemonics are often verbal, something such as a very short poem or a special word used to help a person remember something, particularly lists. Mnemonics rely not only on repetition to remember facts, but also on associations between easy-to-remember constructs and lists of data, based on the principle that the human mind much more easily remembers insignificant data attached to spatial, personal, or otherwise meaningful information than that occurring in meaningless sequences. The sequences must make sense though; if a random mnemonic is made up, it is not necessarily a memory aid.”
above definition is from Wikipedia the on-line encyclopedia.