BOOTED EAGLE

Hieraaetus pennatus
English: Booted Eagle.
German: Zwergadler.
French: Aigle botté.
Order: Accipitriformes.
Family: Accipitridae.
42-51 cm.
110-135 cm.
Booted Eagle is easily recognizable due to its feathered tarsi and its intense yellow legs.
There are no notable differences in plumage between male and female, so sexing cannot be done using this variable.
It is possible to recognize 4 different ages:

Juvenile specimen: it has a new generation plumage with no apparent wear. The secondary and the rectrices are dark brown and the striping is barely distinguishable. There is a marked edge in ante tones on the flight feathers.

2nd Year specimens: during the spring, the plumage is of the juvenile generation but with a well-marked wear. During the autumn, they present a mix of juvenile generation feathers and adult generation feathers in the primaries, secondaries and rectrices.

3rd Year specimens: this stage is only recognizable in some specimens that have retained some of the outer primaries and some central secondaries of the juvenile generation, so they will be very worn.

Adult specimen: the secondaries and rectrices are dark brown with a pronounced striping. The flight feathers, in the months with great wear, look almost without an edge in ante tones.
Booted Eagles perform a complete post-nuptial molt that usually begins in May. This process is suspended during the migration period and is completed in the wintering areas. The post-juvenile molt begins in the 2nd year of life.
Primaries: 10 per wing.
Secundaries: 15-16 per wing.
Rectrices: 12.
Link: http://blascozumeta.com/

La obtención de este material ha sido posible gracias al permiso necesario de la Junta de Andalucía.

AUTORIZACIÓN DE LA DIRECTORA GENERAL DE MEDIO NATURAL, BIODIVERSIDAD Y ESPACIOS PROTEGIDOS DE LA CONSEJERÍA DE AGRICULTURA, GANADERÍA, PESCA Y DESARROLLO SOSTENIBLE DE LA JUNTA DE ANDALUCÍA, PARA LA CESIÓN DE MUESTRAS BIOLÓGICAS DE ESPECIES DE FAUNA (ARTÍCULO 9 DE LA LEY 8/2003, DE 28 DE OCTUBRE, DE LA FLORA Y LA FAUNA SILVESTRES).

Medidas/Measures

Adult specimen

 

1.- Right wing primaries. 2.- Primaries. 3.- Details of tips of the primaries (P10-P5). 4.- Details of outer vane of the primaries. 5.- Details of primaries (P1, P2 and P3). 6.- Secondaries (S1-S7). 7.- Secondaries (S8-S15). 8.- Right wing secondaries and tertials. 9.- Tertials. 10.- Tips of the secondaries details. 11.- Details of the inner vane of S1. 12.- Details of the tip of S1. 13.- Details of the inner vane of S2. 14.- Details of the tip of S2. 15.- Details of S1 and S2. 16.- Primaries, secondaries, and tertials. 17.- Primaries, secondaries, and tertials. 18.- Primaries, secondaries, tertials. Primary coverts and greater coverts. 19.- Details of the primary coverts. 20.- Details of the greater coverts. 21.- Primaries, secondaries, tertials. Primary coverts and secondary coverts (G, M, and L). Alulas. 22.- Primary coverts. 23.- Secondary coverts. 24.- Alulas. 25.- Details of Alulas. 26.- Median coverts. 27.- Details of the primary coverts. 28.- Details of the greater, median, and lesser coverts. 29.- Details of the greater, median, and lesser coverts. 30.- Details of the median coverts. 31.- Details of the lesser coverts. 32.- Rectrices. 33.- Rectrices. 34.- Rectrices + uppertail coverts. 35.- Rectrices + undertail coverts. 36.- Right primary infra-coverts. 37.- Secondary infra-coverts. 38.- Chest feathers. 39.- Assembly of the chest feathers. 40.- Details of the pectoral feathers. 41.- Belly feathers. 42.- Back feathers. 43.- Details of the back feathers. 44.- Sensory feathers surrounding the bill commissures. 45.- Head feathers. 46.- Right leg feathers. 47.- Right shoulder feathers. 48.- Scapular feathers.

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