Thursday, March 18, 2021

Tree full of holes

While I was waiting, a week ago, for the mergansers to come out from behind the undergrowth, I turned to look at the tree beside me.

Just another bare alder. But look at the trunk!

Columns of holes. Background blurred.

Something has been eating that trunk and some of the branches, drilling holes in straight lines, one above the other.

Zooming in.

Most of the lines go top to bottom, but a few, not as enthusiastic, cross horizontally or are spotted randomly.

What does this? A sapsucker! The Red-breasted Sapsucker, Sphyrapicus ruber, is a permanent resident in this area, in coastal forests from sea level to about 2000m. (This tree is at about 120 m. above sea level.)

The name, sapsucker, is a misnomer; the birds drill their wells into the bark, the sap fills them, and the sapsucker licks it up with its tongue, the way a cat drinks. The edges of their tongues are fringed, feathery; they hold the liquid like a sponge. (The cat's tongue has hooked spines.)

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Mientras esperaba, hace un semana, hasta que las serratas se dignaran salir desde su escondite tras los arbustos, se me ocurrió mirar el arbolito a mi lado.

Es un aliso, seco, pero vivo, lo cual se ve por las candelillas que lleva. En el tronco, vi una serie de agujeros alineados verticalmente, por la mayor parte.

Es la obra de un Chupasavias Pechirrojo, un pájaro de la familia de los carpinteros. Este, el pechirrojo, vive en los bosques de este rumbo, desde el nivel de mar hasta unos 2000 m. de altura. (Este árbol se encuentra a más o menos 150m.)

El nombre, chupasavias, no le queda perfectamente. El pájaro no chupa la savia; hace sus perforaciones en la corteza, estos se llenan de savia, y luego el pajarito introduce su lenguita, que está bordeada de pelos, en el pozo, lamiendo la savia. La savia penetra entre los pelos como si fuera una esponja. (Me recuerda la manera en que mi gata bebe; con la lengua llena de espinas que tiene, levanta el agua hacia la boca.)


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