Single note calls are confusing.

Bird	Description	Audio
Baumfalke / Eurasian hobby (Falco subbuteo) ■■	No details but a Xeno-Canto recording. Call: Calls when courting and at breeding ground. Most common sound a high-pitched "tew-tew-tew". Similar to Wryneck, but less pleading. Also a sneezing "ktcho". [Link]	♫
nicht musikalisch
trommeln
Buntspecht / Great spotted woodpecker (Dendrocopos major) ■■	trommeln nicht musikalisch fast low (1-3 KHz) . Song: Other: ‘Drumming’ is the sound that Great Spotted Woodpeckers make by hammering their bills against dead wood 10-20 times over 2-3 seconds. The sound resonates in the dead wood and can be heard over large distances. This drumming acts as an advert and is used by Great spotted Woodpeckers and other woodpecker species instead of a song. [From the GardenBird web site] Nabu: Manchmal, bei strahlendem Sonnenschein, fangen die Spechte schon im Dezember an zu trommeln. [NABU Vogel des Jahres 1997] Call: Nabu: Das bekannteste Geräusch des schwarz-weißen Spechtes ist aber wohl sein kurzes, aber häufiges Trommeln. [Link] In a sonogram I can see about 13 taps in just over half a second, but you can never distinguish so many. It's short but intense, and the second half trails off, especially contrasted with the constant drumming of the three-toed woodpecker. [[Listen here.]] Call: Typically it lasts 0.5 seconds, sometimes slightly longer. Contact call frequently hear throughout the year. A short hiccup "kek", sometimes in series. When excited this may escalate into a trill. [Link]	♫
Eisvogel / Common kingfisher (Alcedo atthis) ■■	No details but a Xeno-Canto recording. Call: Wikipedia says 'The common kingfisher has no song. The flight call is a short, sharp whistle chee repeated two or three times. Anxious birds emit a harsh, shrit-it-it and nestlings call for food with a churring noise.' The NABU app only has calls, which seems to confirm this. Therefore I'm classifying all recordings as calls, even though some say Song at Xeno-Canto. [Link] Most heard is the thin and penetrating contact call: A short "tzee", or disyllabic "tzee-tzu", with a ringing metallic quality. In excitement it is often alternated with ringing trills "tzeerrrrrrrrrr". [Link]	♫
einfach rhythmisch
Sumpfmeise / Marsh tit (Poecile palustris) 1-Noter, Sumpf laenger als Kohl hhmmlll ■■	einfach rhythmisch fast low-high (2-10 KHz) . General: Higher-pitched than great tit, sometimes repetitive 1- and 2-note tunes like them, sometimes simple melodies, usually pure, sometimes chirpy or raspy. Song: 'Song: A simple one or two note call repeated in series. Usually rising slightly in pitch, and with a "liquid" quality.'. [Link] At bird-song.ch it's hl-rest-hl, or 7-8 2-noter swoops. bird-song.ch names lh-break-hl as a pistjä call and also has a series of 7 or 8 falling 'swoops'. [Link] Song: Klapperlied - 6-8 Noten 'angeschlagen' Klapperlied. Reihe (6-8) weich angeschlagene Töne mittlerer Höhe. Ähnlich der Klappergrasmücke aber weicher. (Sumpf ist weich) Oft auch Rufe wie „psja“ zu hören. Ziemlich scharf u. gepresst. [Link]	♫
lallen
Haubenmeise / European crested tit (Lophophanes cristatus) lhlhhh ■■	lallen einfach rhythmisch fast high (3-9 KHz) . Higher-pitched than great tit - how distinguish from coal tit, etc? Song: Song: an improvisation over previously described calls. [Link]	♫
Kohlmeise / Great tit (Parus major) llhllh ■■	einfach rhythmisch slow medium (1-5 KHz) . Said to have a repertoire as a species of 50 or more different songs, albeit simple ones, up to 10 per individual. Females prefer a male with a large repertoire. One two-note song sounds like a squeaky bed. Song: Nabu: Die erste Vogelart, die wir im Jahr hören, ist meistens die Kohlmeise mit ihrem typischen Läuten: "Zip Zäh" oder "Zip zip Zäh". [NABU Experte Lars Lachmann bei Deutschlandfunk Nova] Song highly variable, but usually consisting of two to three notes repeated in a motif. Same birds have many different motifs but generally repeat them many times before switching. Identified by its timbre and often metallic resonant quality, more than by actual phrasing (which is very variable). Often includes buzzing sounds in song. [Link]	♫
Triller
Blaumeise / Eurasian blue tit (Cyanistes caeruleus) h ll ■■	Triller einfach rhythmisch slow high (3-9 KHz) . General: High-pitched, often descending (hhll), occasionally ascending. "Christina compares it to a ping-pong ball dropping. [In Januar singt die Kohlmeise als erster Vogel in Deutschland], dann kommt die Blaumeise dazu. Song: Song: Characteristic, clear, high-pitched, vibrating call. Usually introduced by a couple of accenting syllables, followed by ringing vibrating notes: "ti ti chuhuhuhuhuhuhuhuhuhu". [Link]	♫
stereotypisch melodisch
Triller
Gebirgsstelze / Grey wagtail (Motacilla cinerea) ■■	Triller stereotypisch melodisch fast high (3-9 KHz) . BirdID says Song simple but variable. I hear trills up to 2 seconds long and chirps. Another description says a series of calls, not very melodic. I noted zwitx3, sometimes hhhhhll. [Link] Song: Song simple but variable. Sometimes with more elaborate song-flight like White Wagtail. [Link]	♫

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