Besides compatibility with the iPhone X, this new version of iBird UK has Time of Day, Birds Around Me (BAM) and Percevia smart search features. Time of Day Search The new Time of Day search feature lets you filter birds by activity intervals during day or night (Cathemeral), dawn and dusk (Crepuscular), during the day (Diurnal) or during the night (Nocturnal). Time of Day Notes which provide additional information about a species behavior are found on each species from a new Time of Day menu. The Time of Day feature is particularly useful for birders who are interested in night birding. Abundance Now you can search on the Abundance attribute which includes: Accidental, Casual, Common, Rare and Uncommon status.