Share This Author
Video Cameras on Wild Birds
New Caledonian crows (Corvus moneduloides) are renowned for using tools for extractive foraging, but the ecological context of this unusual behavior is largely unknown. We developed miniaturized,…
The Ecological Significance of Tool Use in New Caledonian Crows
Stable isotope analysis reveals the nutritional benefits of tool use in wild New Caledonian crows and provides estimates of larva-intake rates and shows that just a few larvae can satisfy a crow’s daily energy requirements, highlighting the substantial rewards available to competent tool users.
Tool-related Cognition in New Caledonian Crows
The evidence for physical understanding in the remarkable tool-oriented behaviour of New Caledonian crows cannot prove that this species is capable of understanding physical causality, but it is argued that the conventional mechanisms become less likely as such observations accumulate.
Tool use by wild New Caledonian crows Corvus moneduloides at natural foraging sites
- Lucas A. Bluff, J. Troscianko, A. Weir, A. Kacelnik, C. Rutz
- Environmental Science, BiologyProceedings of the Royal Society B: Biological…
- 7 May 2010
Two complementary lines of investigation provide the first quantitative description of larva fishing by wild crows in its full ecological context and evidence for tool selectivity by New Caledonian crows under natural conditions.
A decade of monitoring the remnant Victorian population of the brush-tailed rock-wallaby (Petrogale penicillata)
Comparison of three monitoring techniques revealed that each detected a different subset of the population in this study, and these techniques should be considered complementary, rather than substitutable, in future monitoring of small Petrogale populations.
Animal-borne imaging takes wing, or the dawn of 'wildlife video-tracking'.
Vocal culture in New Caledonian crows Corvus moneduloides
The findings reveal that the New Caledonian crow Corvus moneduloides exhibits sufficient social learning mechanisms, and within-population structuring, to generate and perpetuate cultural variation in at least one behavioural domain, opening the door for the simultaneous investigation of vocal and material culture in a nonhuman species.
A quick guide to video-tracking birds
A brief description of the basic equipment and field techniques are provided to enable other researchers to start their own video-tracking studies.
Grass-Stem Tool use in New Caledonian Crows Corvus moneduloides
An observation of a wild New Caledonian Crow Corvus moneduloides manufacturing two tools from dry grass stems, and using them to extract lizards from the crevices of a fencepost confirms earlier observations with animal-borne video cameras.