Monday, December 13, 2010
Grey "Little Egret"
Presumed hybrid Little Egret (Egretta garzetta) X Western Reef Heron (Egretta gularis) at Salinas de Santa Luzia (Tavira) on December 12. These birds are seen with regularity in the Algarve and Southern Spain and these type of birds has been discussed in articles in "Dutch Birding" and the website "Rare birds in Spain". The "cave" is, that dark morphs of both species do exist as well.
Lenght and shape of the bill is said to give some indications in this case, among others, as far as I remember, but I did not have the time to look it up yet. This has been only yesterday and I just arrived home now from an excursion with a secondary school class from Faro in Ria Formosa Natural Park to observe birds and talk about (and show!) biodiversity and trophic chain etc.
Voluntary work, by the way ... ;)
Another bird. Little Egret X? This photo is from Febr. 2007 and has been made at a small pool in the salt marsh just behind "Forte do Rato" in Tavira. Perhaps a 2nd or 3rd generation hybrid ?