Roseate Terns with new plastic "field-readable" colorbands

Roseate Terns (Sterna dougallii) with
new plastic "field-readable" colorbands

Jeff Spendelow and his team began using a new type of plastic field-readable (PFR) colorband this year which is GREATLY superior in "readability" to the metal federal bands.  The new bands have a 3-character complex of a letter and two numbers engraved 3 times so that they can be read vertically in a straight line (see photo below).

Young birds from Falkner Island, Connecticut (former study site) have been given yellow bands with black characters starting with the letter "H".  Young (and a few adults) from colony sites in the Gulf of Maine and Canada have been given red bands with white characters beginning with the letters A, B, C, D, E, H, J and N.

Federal metallic band (left) and new plastic "field-readable" colorbands.

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