These birds call with a tik-tik or a leaky hose sound

Bird	Description	Audio
einnotig
stottern/kieseln
Mönchsgrasmücke / Black cap warbler (Sylvia atricapilla) ■■	stottern/kieseln einnotig slow high (3-9 KHz) . General: Sputtery/stoney, but may have other calls too. Call: The Blackcap may generate a perplexing variety of territorial calls, though the typical contact call is a hard, tongue-clicking "teck teck" which has a scolding quality to it. It's not dissimilar to the 'pebble-clacking' call of the Stonechat. [Suffex Wildlife Trust] Call: „täck“ oft wiederholt [Link] Alarm call a hard "check", similar to Lesser White-throat. Sometimes with an additional hoarse and nasal "cherrrr". [Link]	♫
stereotypisch melodisch
Stieglitz / European goldfinch (Carduelis carduelis) ■■	stereotypisch melodisch fast low-high (2-8 KHz) . Der Name 'Stieglitz' ahmt den Ruf (sti-ge-lit) angeblich nach. [Link] Call: Other calls: A harsh budgerigar or house martin-like "trrrtt-trrrrt". [Link]	♫
einnotig
stottern/kieseln
Rotkehlchen / European robin (Erithacus rubecula) ■■	stottern/kieseln einnotig slow high (4-9 KHz) . Personal: A single note usually repeated twice. Somewhat sputtery. BirdID refers to 'a thin, electric "tick". In one source said to be used as alarm call. Call: A variety of calls is also made at any time of year, including a ticking note indicating anxiety or mild alarm. [Link] Call: Alarm call a thin, electric "tick", often in series with decelerating tempo. [Link]	♫
aufsteigend, stottern/kieseln
Hausrotschwanz / Black redstart (Phoenicurus ochruros) ■■	aufsteigend, stottern/kieseln einnotig slow medium (4-5 KHz) . - Alarmruf. XC560014 matches exactly what BirdID describes: 'Alarm call is a chat-like alternation between short, high-pitched "wit" sounds, and series of hard and dry "teck".' The high-pitched call I heard recently was between 5 and 6 KHz, which could help to distinguish between other birds with a deeper voice. The whooping call is sometimes listed as an alarm call. Call: „hüid-tze“ das tze deutlich tiefer. [Link] Alarm call is a chat-like alternation between short, high-pitched "wit" sounds, and series of hard and dry "teck". [Link]	♫
Amsel / Common blackbird (Turdus merula) ■■	einnotig slow medium (1-5 KHz) . - Alarmruf. Sharp-edged call, mostly one note. Call: Je nach Situation, „duck duck duck“, „tix-tix-tix“ in rascher Folge, „srieh“ (auch als Flugwarnruf) [Link] Large repertoire of calls. Most characteristic is a hysterical rattle often given when flushed. Sometimes preceded by a hard "tok tok", which then accelerates into a panicky arpeggio-like crescendo. Contact call a thin redwing-like "srrreee". Alarm calls: a sharp "tink, tink" or a very high pitch falling whistle. [Link]	♫
aufsteigend
Gartenrotschwanz / Common redstart (Phoenicurus phoenicurus) ■■	aufsteigend einnotig slow medium (2-5 KHz) . - Kontaktruf. At least in French, this is called the huit call. Not very consistent in tone from one note to another. Some stick to 3-4 or 3-4.5 KHz, others 2.5-5.5. Call: „Füid-tack“ das füid ähnlich dem des Fitislaubsängers, das tack schnalzend. (wie wenn man die Zunge schnell vom Gaumen abzieht) [Link] Alarm call a slightly drawn, Willow Warbler-like "huit" with a rising pitch, followed by a short, soft "tuc". [Link]	♫
Drosselrohrsänger / Great reed warbler (Acrocephalus arundinaceus) ■■	Call: Rufe:“kerr“ (tief), „ tek“ [Link] Contact call a grating, dry "kirrrat", where each rolling r is discernable. Fairly concise motifs typically consisting of two deep mono- or disyllabic notes followed by a few higher tones. I.e: "kerek kerek, trii trii trii". Clamorous Reed Warbler differs in more diffuse motifs. [Link]

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