Saturday, 16 April 2016

Short-Toed Treecreeper (Certhia brachydactyla)

 
                                       Adult Short-Toed Treecreeper (subspecies C. b. megarhynchaat El Pardo, Spain - April 2016

Local Name (Spain): Agateador comĂșn ("Common Crawler")
Featured Subspecies: Certhia bracydactyla megarhyncha
Weight: 7.5-11g
Length: 12.7cm
Wingspan: 21cm
UK AMBER LIST IUCN Red List: Least Concern

While visually very similar to Eurasian Treecreeper, the Short-Toed Treecreeper is a subtly cifferent and related species found on mainland Europe.  Personally, this isn't a species I wold feel confident separating in the field in the many parts of Europe where they overlap, but, fortunately for me the Short-Toed Treecreeper is absent from the British Isles (though it is found on the Channel Isles) while in much of Spain, including Madrid, the Short-Toed is the only species present.  However, with this picture you can see one of the more obvious diagnostic features; compared to the Common Treecreeper, the white bar on the wing has even serrations rather that erratic ones. There are also subtle differences in colour and dimensions and a different song.

Related Species:
Order: Passeriformes
Family: Certhiidae
Genus: Certhia
Subspecies: C, b, megarhyncha, C. b. brachydactyl, C. b mauritanica, C. b dorotheae, C. b. harterti

 - Sighting Locations -
SPAIN -  Locally common resident
 - MADRID 2016 TRIP:  Seen in small numbers around the river at El Pardo 

Further Notes: RSPBWikipedia, BirdGuides, BirdForum Opus, Arkive, IUCN Red List

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