ML61340091
Colaborador
Data
Localização
- Idade
- Não especificado
- Sexo
- Não especificado
- Etiquetas
- Ninho; Nenhuma ave
Detalhes da observação
In same general area as non-singing DUFL. Frequently making "peet" call. Shorter tail evident in comparison with DUFL. Seen carrying materials to a developing nest on top of a horizontal limb of a Douglas-fir, ca 1-2 m from the bole. Several hours later, on the return, I was not able to locate the nest in the Douglas-fir. Ca 20 m west, on the trail, I noticed a nest that seemed to correspond in size and shape. I photographed it and now, upon comparison of the two photo sets, I am fairly sure that it is the same nest. After finding it on the ground, I looked carefully in the tree, hoping I would find the HAFL nest still up there, but did not - I am reasonably sure I did not overlook it, since I remembered quite well the general area where it had been. I have no way of knowing how the nest came to be on the ground, especially so far away. Predator? Wind? Competing HAFL? CEDW taking nest material? I really hope that my presence did not lead a predator or other disturbance to the nest. When examined on the ground, the nest seemed to be composed of a layer or old, dead grasses on the outside, with a substantial amount of Bryoria lichens inside. There was a bit of an indentation in the top, but a cup was not yet well-developed.
Informação técnica
- Modelo
- COOLPIX P900
- ISO
- 100
- Distancia focal
- 4.3 mm
- Flash
- Flash did not fire, auto
- f-stop
- f/2.8
- Velocidade do obturador
- 0.01 sec
- Dimensões
- 4202 pixels x 2884 pixels
- Tamanho do ficheiro original
- 1.89 MB