Bird of the week - Common Cuckoo
Common Cuckoo -Cuculus canorus-
The Coomon Cuckoo's "koo-koo" is a well-known sound for most of the people. It can be heard from May and early summer, when it has returned from spending the winter in Africa.
The appearance reminds a small bird of prey, with its pointed wings, long tail and fine black lines on the abdomen.
This species is found in many different biotopes. The Cuckoo does not build nests itself, but "parasitizes" other nests from different species by laying eggs in their nests. A Cuckoo chick is therefore always raised by "host" birds of other species. Medow Pipit and Reed Warbler are examples of two common host species.
Data from Lista Fuglestasjon since 1990:
Figure 1. Timing of migration at Lista Bird Observatory
This graph shows the timing of migration throughout the year, taken from the observations of our daily counts. The number is the total number of years for all years. Note: our counts in spring are from March 15 to June 10 and in autumn from July 15 to November 15.
Figure 2. Observations per year at Lista Bird Observatory
This graph shows the number of observations distributed by years. The yellow line is the average for all years. Note that the observations for 2018 will be completed in November.