1avión zapador masculinogolondrina parda chica femenino América Latina
- I was in search of migrant birds and I discovered sand martins and my first common sandpiper of the year.
- I also saw some sand martins for the first time in Iraq.
- A number of sand martins currently nest in the upper layer of soil on the cliff at Glengad.
- Here we use a standardized task to measure the impact of manipulated tail streamer lengths on maneuvering flight in the barn swallow and in the sand martin, a closely related species that lacks a streamer.
- In the past week, sand martins, swallows, chiffchaffs, wheaters and ringed plovers have all been seen there.
- Locals supported claims by the Friends of the Irish Environment group that blasting and excavations on the foreshore at Glengad posed a potential threat to the sand martin, a species of bird which is known to nest there.
- For example, they found that 14%, 2.4%, and 1.8% of 167 sand martins Riparia riparia chicks were the result of extra-pair fertilizations, quasi-parasitism, and CBP, respectively.
- This valley is something, with a sombre curtain of serious rock face, oystercatchers, sand martins and where the water cuts deep, a 15 ft vertical bank profile of round rocks like billiard balls.
- The sand martins are buzzing around and around busy feeding young.
- A study of sexual chases in sand martins showed that heavy females (due to natural and simulated egg loads) faced an impaired take-off ability compared to lighter birds.
- Mention of the Golden Gate National Recreation Area's many rare and endangered species drew loud and spirited booing from the audience, who failed to see why a bank swallow or snowy plover should take precedence over Fido.