Metal exposures change bird behavior

Here we presented the preliminary results of hawk kite usage against the feral pigeons in some grain processing factory. We studied the temporal and spatial patterns of repellent effect and bird behavior. We suggested the feral pigeons gradually increase the level of tolerance towards the hawk kite if no additional repellent measures were undertaken. Moreover, even initially the feral pigeons demonstrate higher tolerance towards the hawk kite compared to the Rooks or Hooded Crows.

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Analysis of Risk-Based Operational Bird Strike Prevention

Aerospace ◽

10.3390/aerospace8020032 ◽

2021 ◽

Vol 8 (2) ◽

pp. 32

Author(s):

Isabel C. Metz ◽

Joost Ellerbroek ◽

Thorsten Mühlhausen ◽

Dirk Kügler ◽

Jacco M. Hoekstra

Keyword(s):

Linear Regression ◽

Civil Aviation ◽

Future Research ◽

Bird Strike ◽

Center Line ◽

Simple Linear Regression ◽

Advisory System ◽

Risk Algorithm ◽

Bird Behavior ◽

Bird Tracks

Bird strike prevention in civil aviation has traditionally focused on the airport perimeter. Since the risk of especially damaging bird strikes outside the airport boundaries is rising, this paper investigates the safety potential of operational bird strike prevention involving pilots and controllers. In such a concept, controllers would be equipped with a bird strike advisory system, allowing them to delay departures which are most vulnerable to the consequences of bird strikes in case of high bird strike risk. An initial study has shown the strong potential of the concept to prevent bird strikes in case of perfect bird movement prediction. This paper takes the research to the next level by taking into account the limited predictability of bird tracks. As such, the collision avoidance algorithm is extended to a bird strike risk algorithm. The risk of bird strikes is calculated for birds expected to cross the extended runway center line and to cause aircraft damage upon impact. By specifically targeting these birds and excluding birds lingering on the runway which are taken care of by the local wildlife control, capacity reductions should be limited, and the implementation remain feasible. The extrapolation of bird tracks is performed by simple linear regression based on the bird positions known at the intended take-off times. To calculate the probability of collision, uncertainties resulting from variability in bird velocity and track are included. The study demonstrates the necessity to limit alerts to potentially damaging strikes with birds crossing the extended runway center line to keep the imposed delays tolerable for airports operating at their capacity limits. It is shown that predicting bird movements based on simple linear regression without considering individual bird behavior is insufficient to achieve a safety-effect. Hence, in-depth studies of multi-year bird data to develop bird behavior models and reliable predictions are recommended for future research. This is expected to facilitate the implementation of a bird strike advisory system satisfying both safety and capacity aspects.

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Borrelia burgdorferi Sensu Lato Spirochetes in Wild Birds in Northwestern California: Associations with Ecological Factors, Bird Behavior and Tick Infestation

PLoS ONE ◽

10.1371/journal.pone.0118146 ◽

2015 ◽

Vol 10 (2) ◽

pp. e0118146 ◽

Cited By ~ 29

Author(s):

Erica A. Newman ◽

Lars Eisen ◽

Rebecca J. Eisen ◽

Natalia Fedorova ◽

Jeomhee M. Hasty ◽

...

Keyword(s):

Borrelia Burgdorferi ◽

Tick Infestation ◽

Ecological Factors ◽

Wild Birds ◽

Borrelia Burgdorferi Sensu Lato ◽

Bird Behavior

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Initial observation of human-bird vocal interactions in a zoological setting

10.7287/peerj.preprints.27927 ◽

2019 ◽

Author(s):

Rébecca Kleinberger ◽

Janet Baker ◽

Gabriel Miller

Keyword(s):

Artificial Intelligence ◽

Managed Care ◽

San Diego ◽

Large Datasets ◽

Initial Observation ◽

Bird Behavior ◽

Vocal Interactions

Vocal interactions between humans and non-human animals are pervasive, but studies are often limited to communication within species. Here, we conducted a pilot exploration of vocal interactions between visitors to the San Diego Zoo Safari Park and Sampson, an 18-year-old male Hyacinth Macaw residing near the entrance. Over the course of one hour, 82 vocal and behavioral events were recorded, and various relationships between human and bird behavior were noted. Analyses of this type, applied to large datasets with assistance from artificial intelligence, could be used to better understand the impacts, positive or negative, of human visitors on animals in managed care.

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Exploiting Scanning Behavior for Predators Can Reduce Rice Damage Caused by Birds

International Journal of Zoology ◽

10.1155/2015/568494 ◽

2015 ◽

Vol 2015 ◽

pp. 1-3

Author(s):

Takeshi Honda

Keyword(s):

Habitat Quality ◽

Weed Management ◽

Rice Fields ◽

Crop Damage ◽

Damage Rate ◽

Low Visibility ◽

Management Techniques ◽

Bird Behavior ◽

Scanning Behavior ◽

The Relationship

Rice is often damaged by birds, especially sparrows, in Asia. Bird nets are sometimes used as countermeasures; however this approach is expensive and labor intensive. For this reason, farmers generally eschew bird nets, even though no alternative countermeasures are available. This study focused on exploiting the bird behavior of scanning for predators to reduce crop damage. When birds forage for seeds on the ground they often stop pecking and briefly raise their heads, apparently to scan for predators. Low visibility habitats increase scanning behavior and increased scanning behavior reduces habitat quality from the bird’s perspective; therefore, this study tested the relationship between rice damage rate and visibility at the periphery of rice fields, where tree sparrows rest after feeding. Overall, low visibility reduced damage to rice. Because visibility was mainly affected by weeds, weed management techniques contribute to crop damage management. To reduce damage, weeding can be decreased; therefore, this technique is cost- and labor-efficient.

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