Sunday, March 20, 2022

Quoth the raven

I stopped at the rest area overlooking Roberts Lake to drink my coffee, and a pair of ravens joined me. (Not for coffee, but I shared my oatcakes with them.)

Raven # 1, watching me from a tree. In the background, the hills on the far side of the lake.

Raven # 2. Watching me, but not worried.

Raven # 1 again, coming out into the open.

It was good of them to pose so nicely; they're demonstrating the difference between them and their smaller cousins, the crows.

Ravens (Corvus corax) are bigger, about 60 cm. long, versus the 40 cm. for the crows (Corvus caurinus).

Ravens have a heavier bill.

Ravens wear a feather ruffle at the throat. Crows are sleek.

Crows travel in flocks. Adult ravens mate for life and travel with their mate.

And crows caw. Their voice is harsh, but thin-sounding, and with little variation: "Caw, caw, caaw!". The raven's voice is deeper and louder, and she has a wide repertoire of croaks and laughs and groans. In this pair, Raven # 2 came up with a sound I would not have expected: a two-tone call, almost musical, repeated several times while he (or she?) chatted with his mate.

More about this pair tomorrow.

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Me detuve en el area de descanso al lado del lago Roberts, para tomar mi café, y una pareja de cuervos grandes (Corvus corax) llegaron para acompañarme. (No tomaron café, pero compartí mis galletas de avena con ellos.)

Fotos: Cuervo # 1, luego el segundo, y otra vez el primero.

Era muy amable de su parte posar tan tranquilamente; me permiten anotar la diferencia entre éstos y el cuervo del noroeste, Corvus caurinus.

El cuervo grande es más grande, midiendo aproximadamente 60 cm de largo, mientras su primo el cuervo del noroeste mide unos 40 cm.

El pico del cuervo grande es más robusto.

Los cuervos grandes llevan un collar de plumas a la garganta. Los cuervos chicos son lisos.

Los cuervos del noroeste se reunen en bandadas. Los cuervos corax se aparean por vida y viajan de dos en dos con su pareja.

Y los cuervos del noroeste tienen un graznido áspero pero ligero y no varía mucho. "¡krra, krra, krraaa!" La voz del cuervo grande es más ronco, más fuerte. Y tiene una gran variedad de sonidos y llamadas; croan, carraspean, se rien, gruñen, gritan. Y en esta pareja, el cuervo segundo salió con un canto que no hubiera esperado: dos notas seguidas, casi musicales, repetidas varias veces, hablando con su pareja.



2 comments:

  1. They are beautiful birds!

    ReplyDelete
  2. Love seeing the ravens there. Beautiful photos. We have a pair here that like to hang out on the roof of the abandoned house next door to us. I love hearing their calls.

    ReplyDelete

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