Due to changes at US Customs we will be only processing the shipping of orders through UPS. The purchase cost does not include any costs incurred from US Customs and the receiver will be liable for all import duties and taxes associated with their order. Should the order be returned undelivered, please note the refund will be processed minus the shipping costs.
Certain goods from specific countries are subject to higher tariffs and import restrictions. Ensure you check the regulations regarding the country of origin of your items to avoid unexpected charges or delays. Also ensure you select "business address" or "home address" when adding a new address to ensure your order is reported correctly
If you have any questions or need help with placing your order, please contact our Customer Services Team or select "Quotation" as the payment method online. Furthermore you can contact your local customs office for further information.
British Wildlife is the leading natural history magazine in the UK, providing essential reading for both enthusiast and professional naturalists and wildlife conservationists. Published eight times a year, British Wildlife bridges the gap between popular writing and scientific literature through a combination of long-form articles, regular columns and reports, book reviews and letters.
Conservation Land Management (CLM) is a quarterly magazine that is widely regarded as essential reading for all who are involved in land management for nature conservation, across the British Isles. CLM includes long-form articles, events listings, publication reviews, new product information and updates, reports of conferences and letters.
Zero-crossing is a type of frequency division system that counts every time a sound wave crosses an imaginary zero point and provides a frequency / time output. Zero--crossing detectors are primarily used to record bat calls for analysis with bioacoustics software and as they produce small file sizes are efficient with battery useage they can be left in the field unattended for long term monitoring. They only capture the loudest frequency at any one time, however, so harmonics are not recorded and the output does not contain amplitude information.



