Louisiana Waterthrush Seiurus motacilla
Flight call description A sweet, trilled "dzeedt", often with a subtle rise.
Fig.1. Maryland July 14, 1993 (MO).
Perched bird on the breeding grounds.
Examples Diurnal
Similar species Has the same sweetness of Blackburnian and Bay-breasted Warblers, but is typically longer. See Northern Waterthrush and zeep calls.
Behavior Primarily a nocturnal migrant but engages in redetermined migration. Gives flight call regularly while perched and in flight during the day and presumably during nocturnal migration. Has also been heard giving flight song during spring nocturnal migration.
Spectrographic description Measured calls (N=5) were 51.9-74.8 (76.7) mS in duration and in the 6.8-8.7 (7-8.4) kHz frequency range. The frequency track was single or double-banded and is level or slightly rising. It was evenly modulated with 3.5-6 (4.5) humps with a spacing of 13.6-17 (15.6) mS and a depth of 0.8-1.2 (1) kHz.