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CTx Connectivity Tags

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Biotrack CTx Tags

Find out more using Biotrack's new tags with an onboard calendar to transmit on days you choose.

Great for:

  • Migration connectivity studies
  • Breeding/wintering site fidelity
  • or any studies needing very small tags with longer life, where continuous tracking is not necessary


Migratory connectivity is the degree to which breeding and non-breeding populations of birds are linked to one another in both space and time, which is fundamental to other processes such as population dynamics, dispersal and colonisation.

For more information see: www.migratoryconnectivityproject.org

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Customized to order - options include:

  • Usual lifespan or range customizations
  • Side or end tubes for harness attachment
  • Extra protection & stronger antennas for greater durability
  • Teflon Ribbon harness material available

Options may increase weight, please contact us.

Battery type: Typical tag weight,
depending on design (g):
Expected battery lifespan (days) over a 12-month* period
    20ms
48ppm:
10ms
27ppm:
Ag379 0.7 - 0.8 N/A 14
Ag376 0.9 - 1.0 34 116
Ag392 1.2 - 1.4 63 219
Ag393 1.7 - 2.1 142 1 year

* Ag379 only over a 6-month period