27 August 2026
Thermals and First Flights
Scientific fact
On the steep faces of Ptero Cliffs, where nest activity is currently elevated, Pteranodons make use of local thermal updrafts not only for soaring but as a natural 'incubator' for their eggs. Warm ascending air heats the surface layers of the chalky ledges and creates microzones with more stable temperatures near nest sites. This reduces the need for constant parental brooding during periods when adults undertake long foraging sorties.
Beyond egg warming, thermals also shape juvenile flight training: initial practice flights begin in gentle updrafts along the cliff edge, where the energetic cost of takeoff is lowest. Young Pteranodons first practice gliding and roll control using these rising currents rather than exposing themselves to sudden downdrafts, lowering the risk of falling onto the rocky shore.
Caretaker observations at JuraLand indicate that nests positioned within persistent updraft corridors yield higher successful-fledge rates. This behavioral factor—choosing nesting spots with reliable thermal support—proves as important as predator avoidance when females select laying sites.
In the park we apply these natural patterns to plan monitoring and team positioning: mapped uplift corridors let us minimize interventions and give juveniles safe space to build the aerodynamic strength needed for their first full flights.
Beyond egg warming, thermals also shape juvenile flight training: initial practice flights begin in gentle updrafts along the cliff edge, where the energetic cost of takeoff is lowest. Young Pteranodons first practice gliding and roll control using these rising currents rather than exposing themselves to sudden downdrafts, lowering the risk of falling onto the rocky shore.
Caretaker observations at JuraLand indicate that nests positioned within persistent updraft corridors yield higher successful-fledge rates. This behavioral factor—choosing nesting spots with reliable thermal support—proves as important as predator avoidance when females select laying sites.
In the park we apply these natural patterns to plan monitoring and team positioning: mapped uplift corridors let us minimize interventions and give juveniles safe space to build the aerodynamic strength needed for their first full flights.