La imagen es autoría de Humberto Matos.

Species 1

Great Egret

It is much larger than the Great Egret, to which it is remarkably similar, but slightly slenderer. The neck is long and angular, it does not have the characteristic occipital feathers of the former, but the bill turns yellow during the non-nuptial season. During the mating season the tibiae acquire a reddish colouration.

Scientific name

Ardea alba

Family 2

Ardeidae

Taxonomic Affinity Group 3

Herons and Similars

Phenology 4

In the Iberian Peninsula its status was rare until the late twentieth century, it is gradually becoming more common in winter. In our wetlands there has also been a similar expansion, from an extraordinarily rare bird to becoming common in winter, with a significant postnuptial arrival.

The graph represents the probability of seeing a species during the year, grouped into months. The vertical axis indicates the percentage value. Each of the bars expresses its value. The horizontal axis represents the months: I = January, II = February, III = March, IV = April, V = May, VI = June, VII = July, VIII = August, IX = September, X = October, XI = November and XII = December.

Observation recommendations

Its size and white colour make it easily detectable, especially in the ‘Salinas Viejas’ and ‘Cerrillos’.

Observation areas where we can find it

Notes

[1] The names used are from the list of birds of Spain, drawn up by SEO/BirdLife and updated to 2019 (https://seo.org/listaavesdeespana/). The reference is: Rouco, M., Copete, J. L., De Juana, E., Gil-Velasco, M., Lorenzo, J. A., Martín, M., Milá, B., Molina, B. & Santos, D. M. 2019. Checklist of the birds of Spain. 2019 edition. SEO/BirdLife. Madrid.

[2] The taxonomic family to which it belongs is indicated.

[3] Traditionally, waterbirds have been grouped according to their taxonomy or “taxonomic affinity”, i.e., when some birds coincide in certain features that allow them to be classified scientifically, but without leaving the rigour of science, they are put together in these groups so that they can be easily recognised. These groups are the following: Greves (belonging to the Podicipedae family), Herons and Similar (includes the families: Ardeidae -Herons- Ciconiidae -Storks- and Threskiornithidae -Ibises and spoonbills-), Ducks (the whole Anatidae family), Coots and Similar (the family Rallidae corresponding to Rails, Gallinules and Coots), Cranes (also with only one family, the Gruidae), Waders , a heterogeneous group, the most diverse of this classification, includes the families Burhinidae (Stone-curlews), Haematopodidae (Oystercather), Recurvirostridade (Avocets and Stilts), Glareolidae (Pranticole), Charadriidadea (Plovers), Scolapacidae and finally Gulls and Similar (the recently unified family Laridae, i.e. Gulls and Terns).

[4] Phenology studies the relationship between the cycles of living beings and meteorological factors, and in our latitude these factors manifest themselves as variations throughout the year, thus relating the seasons to the birds’ cycles (breeding, migratory journeys, etc.) The graph shows the probability of seeing a bird depending on the month. It uses data from 48 bird censuses carried out between October 2016 and September 2018. The method used is that of a census route with sampling stations, with a total count on the sheet of water.